Revert "Update with 5.14.0-284.25.1.rt14.310.el9_2 security fixes"
This reverts commit 846283d9c2.
This commit is contained in:
parent
846283d9c2
commit
facf21187b
@ -1,87 +0,0 @@
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From 6f404ab35a9a684cb6ee146a39413698bba17fe4 Mon Sep 17 00:00:00 2001
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From: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
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Date: Wed, 2 Aug 2023 12:50:36 +0000
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Subject: [PATCH 1/5] KVM: x86/mmu: Fix race condition in direct_page_fault
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make_mmu_pages_available() must be called with mmu_lock held for write.
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However, if the TDP MMU is used, it will be called with mmu_lock held for
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read.
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This function does nothing unless shadow pages are used, so there is no
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race unless nested TDP is used.
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Since nested TDP uses shadow pages, old shadow pages may be zapped by this
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function even when the TDP MMU is enabled.
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Since shadow pages are never allocated by kvm_tdp_mmu_map(), a race
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condition can be avoided by not calling make_mmu_pages_available() if the
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TDP MMU is currently in use.
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I encountered this when repeatedly starting and stopping nested VM.
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It can be artificially caused by allocating a large number of nested TDP
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SPTEs.
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For example, the following BUG and general protection fault are caused in
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the host kernel.
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pte_list_remove: 00000000cd54fc10 many->many
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------------[ cut here ]------------
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kernel BUG at arch/x86/kvm/mmu/mmu.c:963!
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invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
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RIP: 0010:pte_list_remove.cold+0x16/0x48 [kvm]
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Call Trace:
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<TASK>
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drop_spte+0xe0/0x180 [kvm]
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mmu_page_zap_pte+0x4f/0x140 [kvm]
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__kvm_mmu_prepare_zap_page+0x62/0x3e0 [kvm]
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kvm_mmu_zap_oldest_mmu_pages+0x7d/0xf0 [kvm]
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direct_page_fault+0x3cb/0x9b0 [kvm]
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kvm_tdp_page_fault+0x2c/0xa0 [kvm]
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kvm_mmu_page_fault+0x207/0x930 [kvm]
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npf_interception+0x47/0xb0 [kvm_amd]
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svm_invoke_exit_handler+0x13c/0x1a0 [kvm_amd]
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svm_handle_exit+0xfc/0x2c0 [kvm_amd]
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kvm_arch_vcpu_ioctl_run+0xa79/0x1780 [kvm]
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kvm_vcpu_ioctl+0x29b/0x6f0 [kvm]
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__x64_sys_ioctl+0x95/0xd0
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do_syscall_64+0x5c/0x90
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general protection fault, probably for non-canonical address
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0xdead000000000122: 0000 [#1] PREEMPT SMP NOPTI
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RIP: 0010:kvm_mmu_commit_zap_page.part.0+0x4b/0xe0 [kvm]
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Call Trace:
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<TASK>
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kvm_mmu_zap_oldest_mmu_pages+0xae/0xf0 [kvm]
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direct_page_fault+0x3cb/0x9b0 [kvm]
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kvm_tdp_page_fault+0x2c/0xa0 [kvm]
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kvm_mmu_page_fault+0x207/0x930 [kvm]
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npf_interception+0x47/0xb0 [kvm_amd]
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CVE: CVE-2022-45869
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Fixes: a2855afc7ee8 ("KVM: x86/mmu: Allow parallel page faults for the TDP MMU")
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Signed-off-by: Kazuki Takiguchi <takiguchi.kazuki171@gmail.com>
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Cc: stable@vger.kernel.org
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Conflicts: dropped hunk in direct_page_fault because the following backported commits do the same thing
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a158127f55b98c ("KVM: x86/mmu: Split out TDP MMU page fault handling")
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1290f90e77186b ("KVM: x86/mmu: Stop needlessly making MMU pages available for TDP MMU faults")
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Signed-off-by: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
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Reviewed-by: Laurence Rochfort <laurence.rochfort@oracle.com>
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---
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arch/x86/kvm/mmu/mmu.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
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index 05c137831..2968f8137 100644
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--- a/arch/x86/kvm/mmu/mmu.c
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+++ b/arch/x86/kvm/mmu/mmu.c
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@@ -2432,6 +2432,7 @@ static bool __kvm_mmu_prepare_zap_page(struct kvm *kvm,
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{
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bool list_unstable, zapped_root = false;
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+ lockdep_assert_held_write(&kvm->mmu_lock);
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trace_kvm_mmu_prepare_zap_page(sp);
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++kvm->stat.mmu_shadow_zapped;
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*nr_zapped = mmu_zap_unsync_children(kvm, sp, invalid_list);
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--
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2.31.1
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@ -1,45 +0,0 @@
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From c9e34f92dafffe1fd37ba7ef7fb198002576bea1 Mon Sep 17 00:00:00 2001
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From: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
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Date: Wed, 2 Aug 2023 12:54:02 +0000
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Subject: [PATCH 2/5] prlimit: do_prlimit needs to have a speculation check
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CVE: CVE-2023-0458
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commit 739790605705ddcf18f21782b9c99ad7d53a8c11
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Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Date: Fri Jan 20 11:03:20 2023 +0100
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prlimit: do_prlimit needs to have a speculation check
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do_prlimit() adds the user-controlled resource value to a pointer that
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will subsequently be dereferenced. In order to help prevent this
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codepath from being used as a spectre "gadget" a barrier needs to be
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added after checking the range.
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Reported-by: Jordy Zomer <jordyzomer@google.com>
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Tested-by: Jordy Zomer <jordyzomer@google.com>
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Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Signed-off-by: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
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Reviewed-by: Laurence Rochfort <laurence.rochfort@oracle.com>
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---
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kernel/sys.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/kernel/sys.c b/kernel/sys.c
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index 75852f64d..45480f6f6 100644
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--- a/kernel/sys.c
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+++ b/kernel/sys.c
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@@ -1439,6 +1439,8 @@ static int do_prlimit(struct task_struct *tsk, unsigned int resource,
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if (resource >= RLIM_NLIMITS)
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return -EINVAL;
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+ resource = array_index_nospec(resource, RLIM_NLIMITS);
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+
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if (new_rlim) {
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if (new_rlim->rlim_cur > new_rlim->rlim_max)
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return -EINVAL;
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--
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2.31.1
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@ -1,95 +0,0 @@
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From 4758c1f8ad5385e53ea85739ad9f6fa6dfc0abda Mon Sep 17 00:00:00 2001
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From: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
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Date: Wed, 2 Aug 2023 12:55:46 +0000
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Subject: [PATCH 3/5] x86/speculation: Allow enabling STIBP with legacy IBRS
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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When plain IBRS is enabled (not enhanced IBRS), the logic in
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spectre_v2_user_select_mitigation() determines that STIBP is not needed.
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The IBRS bit implicitly protects against cross-thread branch target
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injection. However, with legacy IBRS, the IBRS bit is cleared on
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returning to userspace for performance reasons which leaves userspace
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threads vulnerable to cross-thread branch target injection against which
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STIBP protects.
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Exclude IBRS from the spectre_v2_in_ibrs_mode() check to allow for
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enabling STIBP (through seccomp/prctl() by default or always-on, if
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selected by spectre_v2_user kernel cmdline parameter).
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[ bp: Massage. ]
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Fixes: 7c693f54c873 ("x86/speculation: Add spectre_v2=ibrs option to support Kernel IBRS")
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Reported-by: José Oliveira <joseloliveira11@gmail.com>
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Reported-by: Rodrigo Branco <rodrigo@kernelhacking.com>
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Signed-off-by: KP Singh <kpsingh@kernel.org>
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Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
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Signed-off-by: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
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Reviewed-by: Laurence Rochfort <laurence.rochfort@oracle.com>
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---
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arch/x86/kernel/cpu/bugs.c | 25 ++++++++++++++++++-------
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1 file changed, 18 insertions(+), 7 deletions(-)
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diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
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index da7c361f4..e13c4ecdc 100644
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--- a/arch/x86/kernel/cpu/bugs.c
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+++ b/arch/x86/kernel/cpu/bugs.c
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@@ -1095,14 +1095,18 @@ spectre_v2_parse_user_cmdline(void)
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return SPECTRE_V2_USER_CMD_AUTO;
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}
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-static inline bool spectre_v2_in_ibrs_mode(enum spectre_v2_mitigation mode)
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+static inline bool spectre_v2_in_eibrs_mode(enum spectre_v2_mitigation mode)
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{
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- return mode == SPECTRE_V2_IBRS ||
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- mode == SPECTRE_V2_EIBRS ||
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+ return mode == SPECTRE_V2_EIBRS ||
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mode == SPECTRE_V2_EIBRS_RETPOLINE ||
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mode == SPECTRE_V2_EIBRS_LFENCE;
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}
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+static inline bool spectre_v2_in_ibrs_mode(enum spectre_v2_mitigation mode)
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+{
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+ return spectre_v2_in_eibrs_mode(mode) || mode == SPECTRE_V2_IBRS;
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+}
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+
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static void __init
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spectre_v2_user_select_mitigation(void)
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{
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@@ -1165,12 +1169,19 @@ spectre_v2_user_select_mitigation(void)
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}
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/*
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- * If no STIBP, IBRS or enhanced IBRS is enabled, or SMT impossible,
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- * STIBP is not required.
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+ * If no STIBP, enhanced IBRS is enabled, or SMT impossible, STIBP
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+ * is not required.
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+ *
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+ * Enhanced IBRS also protects against cross-thread branch target
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+ * injection in user-mode as the IBRS bit remains always set which
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+ * implicitly enables cross-thread protections. However, in legacy IBRS
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+ * mode, the IBRS bit is set only on kernel entry and cleared on return
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+ * to userspace. This disables the implicit cross-thread protection,
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+ * so allow for STIBP to be selected in that case.
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*/
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if (!boot_cpu_has(X86_FEATURE_STIBP) ||
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!smt_possible ||
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- spectre_v2_in_ibrs_mode(spectre_v2_enabled))
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+ spectre_v2_in_eibrs_mode(spectre_v2_enabled))
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return;
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/*
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@@ -2295,7 +2306,7 @@ static ssize_t mmio_stale_data_show_state(char *buf)
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static char *stibp_state(void)
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{
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- if (spectre_v2_in_ibrs_mode(spectre_v2_enabled))
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+ if (spectre_v2_in_eibrs_mode(spectre_v2_enabled))
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return "";
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switch (spectre_v2_user_stibp) {
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--
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2.31.1
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@ -1,180 +0,0 @@
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From 4308d0e03dfe439f30b356630beb8b941bf84bf7 Mon Sep 17 00:00:00 2001
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From: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
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Date: Wed, 2 Aug 2023 13:05:59 +0000
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Subject: [PATCH 4/5] ipvlan:Fix out-of-bounds caused by unclear skb->cb
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CVE: CVE-2023-3090
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commit 90cbed5247439a966b645b34eb0a2e037836ea8e
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|
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Author: t.feng <fengtao40@huawei.com>
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Date: Wed May 10 11:50:44 2023 +0800
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ipvlan:Fix out-of-bounds caused by unclear skb->cb
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If skb enqueue the qdisc, fq_skb_cb(skb)->time_to_send is changed which
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is actually skb->cb, and IPCB(skb_in)->opt will be used in
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__ip_options_echo. It is possible that memcpy is out of bounds and lead
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to stack overflow.
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We should clear skb->cb before ip_local_out or ip6_local_out.
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v2:
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1. clean the stack info
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2. use IPCB/IP6CB instead of skb->cb
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crash on stable-5.10(reproduce in kasan kernel).
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Stack info:
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[ 2203.651571] BUG: KASAN: stack-out-of-bounds in
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__ip_options_echo+0x589/0x800
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[ 2203.653327] Write of size 4 at addr ffff88811a388f27 by task
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swapper/3/0
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[ 2203.655460] CPU: 3 PID: 0 Comm: swapper/3 Kdump: loaded Not tainted
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|
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5.10.0-60.18.0.50.h856.kasan.eulerosv2r11.x86_64 #1
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|
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[ 2203.655466] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
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|
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BIOS rel-1.10.2-0-g5f4c7b1-20181220_000000-szxrtosci10000 04/01/2014
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|
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[ 2203.655475] Call Trace:
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|
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[ 2203.655481] <IRQ>
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|
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[ 2203.655501] dump_stack+0x9c/0xd3
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|
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[ 2203.655514] print_address_description.constprop.0+0x19/0x170
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|
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[ 2203.655530] __kasan_report.cold+0x6c/0x84
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[ 2203.655586] kasan_report+0x3a/0x50
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[ 2203.655586] kasan_report+0x3a/0x50
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[ 2203.655594] check_memory_region+0xfd/0x1f0
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[ 2203.655594] check_memory_region+0xfd/0x1f0
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|
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[ 2203.655601] memcpy+0x39/0x60
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|
||||||
[ 2203.655608] __ip_options_echo+0x589/0x800
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|
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[ 2203.655654] __icmp_send+0x59a/0x960
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[ 2203.655755] nf_send_unreach+0x129/0x3d0 [nf_reject_ipv4]
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[ 2203.655763] reject_tg+0x77/0x1bf [ipt_REJECT]
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|
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[ 2203.655772] ipt_do_table+0x691/0xa40 [ip_tables]
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|
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[ 2203.655821] nf_hook_slow+0x69/0x100
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|
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[ 2203.655828] __ip_local_out+0x21e/0x2b0
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|
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[ 2203.655857] ip_local_out+0x28/0x90
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|
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[ 2203.655868] ipvlan_process_v4_outbound+0x21e/0x260 [ipvlan]
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|
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[ 2203.655931] ipvlan_xmit_mode_l3+0x3bd/0x400 [ipvlan]
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|
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[ 2203.655967] ipvlan_queue_xmit+0xb3/0x190 [ipvlan]
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|
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[ 2203.655977] ipvlan_start_xmit+0x2e/0xb0 [ipvlan]
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[ 2203.655984] xmit_one.constprop.0+0xe1/0x280
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[ 2203.655992] dev_hard_start_xmit+0x62/0x100
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|
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[ 2203.656000] sch_direct_xmit+0x215/0x640
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|
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[ 2203.656028] __qdisc_run+0x153/0x1f0
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|
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[ 2203.656069] __dev_queue_xmit+0x77f/0x1030
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|
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[ 2203.656173] ip_finish_output2+0x59b/0xc20
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|
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[ 2203.656244] __ip_finish_output.part.0+0x318/0x3d0
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|
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[ 2203.656312] ip_finish_output+0x168/0x190
|
|
||||||
[ 2203.656320] ip_output+0x12d/0x220
|
|
||||||
[ 2203.656357] __ip_queue_xmit+0x392/0x880
|
|
||||||
[ 2203.656380] __tcp_transmit_skb+0x1088/0x11c0
|
|
||||||
[ 2203.656436] __tcp_retransmit_skb+0x475/0xa30
|
|
||||||
[ 2203.656505] tcp_retransmit_skb+0x2d/0x190
|
|
||||||
[ 2203.656512] tcp_retransmit_timer+0x3af/0x9a0
|
|
||||||
[ 2203.656519] tcp_write_timer_handler+0x3ba/0x510
|
|
||||||
[ 2203.656529] tcp_write_timer+0x55/0x180
|
|
||||||
[ 2203.656542] call_timer_fn+0x3f/0x1d0
|
|
||||||
[ 2203.656555] expire_timers+0x160/0x200
|
|
||||||
[ 2203.656562] run_timer_softirq+0x1f4/0x480
|
|
||||||
[ 2203.656606] __do_softirq+0xfd/0x402
|
|
||||||
[ 2203.656613] asm_call_irq_on_stack+0x12/0x20
|
|
||||||
[ 2203.656617] </IRQ>
|
|
||||||
[ 2203.656623] do_softirq_own_stack+0x37/0x50
|
|
||||||
[ 2203.656631] irq_exit_rcu+0x134/0x1a0
|
|
||||||
[ 2203.656639] sysvec_apic_timer_interrupt+0x36/0x80
|
|
||||||
[ 2203.656646] asm_sysvec_apic_timer_interrupt+0x12/0x20
|
|
||||||
[ 2203.656654] RIP: 0010:default_idle+0x13/0x20
|
|
||||||
[ 2203.656663] Code: 89 f0 5d 41 5c 41 5d 41 5e c3 cc cc cc cc cc cc cc
|
|
||||||
cc cc cc cc cc cc 0f 1f 44 00 00 0f 1f 44 00 00 0f 00 2d 9f 32 57 00 fb
|
|
||||||
f4 <c3> cc cc cc cc 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 54 be 08
|
|
||||||
[ 2203.656668] RSP: 0018:ffff88810036fe78 EFLAGS: 00000256
|
|
||||||
[ 2203.656676] RAX: ffffffffaf2a87f0 RBX: ffff888100360000 RCX:
|
|
||||||
ffffffffaf290191
|
|
||||||
[ 2203.656681] RDX: 0000000000098b5e RSI: 0000000000000004 RDI:
|
|
||||||
ffff88811a3c4f60
|
|
||||||
[ 2203.656686] RBP: 0000000000000000 R08: 0000000000000001 R09:
|
|
||||||
ffff88811a3c4f63
|
|
||||||
[ 2203.656690] R10: ffffed10234789ec R11: 0000000000000001 R12:
|
|
||||||
0000000000000003
|
|
||||||
[ 2203.656695] R13: ffff888100360000 R14: 0000000000000000 R15:
|
|
||||||
0000000000000000
|
|
||||||
[ 2203.656729] default_idle_call+0x5a/0x150
|
|
||||||
[ 2203.656735] cpuidle_idle_call+0x1c6/0x220
|
|
||||||
[ 2203.656780] do_idle+0xab/0x100
|
|
||||||
[ 2203.656786] cpu_startup_entry+0x19/0x20
|
|
||||||
[ 2203.656793] secondary_startup_64_no_verify+0xc2/0xcb
|
|
||||||
|
|
||||||
[ 2203.657409] The buggy address belongs to the page:
|
|
||||||
[ 2203.658648] page:0000000027a9842f refcount:1 mapcount:0
|
|
||||||
mapping:0000000000000000 index:0x0 pfn:0x11a388
|
|
||||||
[ 2203.658665] flags:
|
|
||||||
0x17ffffc0001000(reserved|node=0|zone=2|lastcpupid=0x1fffff)
|
|
||||||
[ 2203.658675] raw: 0017ffffc0001000 ffffea000468e208 ffffea000468e208
|
|
||||||
0000000000000000
|
|
||||||
[ 2203.658682] raw: 0000000000000000 0000000000000000 00000001ffffffff
|
|
||||||
0000000000000000
|
|
||||||
[ 2203.658686] page dumped because: kasan: bad access detected
|
|
||||||
|
|
||||||
To reproduce(ipvlan with IPVLAN_MODE_L3):
|
|
||||||
Env setting:
|
|
||||||
=======================================================
|
|
||||||
modprobe ipvlan ipvlan_default_mode=1
|
|
||||||
sysctl net.ipv4.conf.eth0.forwarding=1
|
|
||||||
iptables -t nat -A POSTROUTING -s 20.0.0.0/255.255.255.0 -o eth0 -j
|
|
||||||
MASQUERADE
|
|
||||||
ip link add gw link eth0 type ipvlan
|
|
||||||
ip -4 addr add 20.0.0.254/24 dev gw
|
|
||||||
ip netns add net1
|
|
||||||
ip link add ipv1 link eth0 type ipvlan
|
|
||||||
ip link set ipv1 netns net1
|
|
||||||
ip netns exec net1 ip link set ipv1 up
|
|
||||||
ip netns exec net1 ip -4 addr add 20.0.0.4/24 dev ipv1
|
|
||||||
ip netns exec net1 route add default gw 20.0.0.254
|
|
||||||
ip netns exec net1 tc qdisc add dev ipv1 root netem loss 10%
|
|
||||||
ifconfig gw up
|
|
||||||
iptables -t filter -A OUTPUT -p tcp --dport 8888 -j REJECT --reject-with
|
|
||||||
icmp-port-unreachable
|
|
||||||
=======================================================
|
|
||||||
And then excute the shell(curl any address of eth0 can reach):
|
|
||||||
|
|
||||||
for((i=1;i<=100000;i++))
|
|
||||||
do
|
|
||||||
ip netns exec net1 curl x.x.x.x:8888
|
|
||||||
done
|
|
||||||
=======================================================
|
|
||||||
|
|
||||||
Fixes: 2ad7bf363841 ("ipvlan: Initial check-in of the IPVLAN driver.")
|
|
||||||
Signed-off-by: "t.feng" <fengtao40@huawei.com>
|
|
||||||
Suggested-by: Florian Westphal <fw@strlen.de>
|
|
||||||
Reviewed-by: Paolo Abeni <pabeni@redhat.com>
|
|
||||||
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
||||||
|
|
||||||
Signed-off-by: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
|
|
||||||
Reviewed-by: Laurence Rochfort <laurence.rochfort@oracle.com>
|
|
||||||
---
|
|
||||||
drivers/net/ipvlan/ipvlan_core.c | 6 ++++++
|
|
||||||
1 file changed, 6 insertions(+)
|
|
||||||
|
|
||||||
diff --git a/drivers/net/ipvlan/ipvlan_core.c b/drivers/net/ipvlan/ipvlan_core.c
|
|
||||||
index fe584e8ac..ab14c06d1 100644
|
|
||||||
--- a/drivers/net/ipvlan/ipvlan_core.c
|
|
||||||
+++ b/drivers/net/ipvlan/ipvlan_core.c
|
|
||||||
@@ -437,6 +437,9 @@ static int ipvlan_process_v4_outbound(struct sk_buff *skb)
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
skb_dst_set(skb, &rt->dst);
|
|
||||||
+
|
|
||||||
+ memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
|
|
||||||
+
|
|
||||||
err = ip_local_out(net, skb->sk, skb);
|
|
||||||
if (unlikely(net_xmit_eval(err)))
|
|
||||||
dev->stats.tx_errors++;
|
|
||||||
@@ -475,6 +478,9 @@ static int ipvlan_process_v6_outbound(struct sk_buff *skb)
|
|
||||||
goto err;
|
|
||||||
}
|
|
||||||
skb_dst_set(skb, dst);
|
|
||||||
+
|
|
||||||
+ memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
|
|
||||||
+
|
|
||||||
err = ip6_local_out(net, skb->sk, skb);
|
|
||||||
if (unlikely(net_xmit_eval(err)))
|
|
||||||
dev->stats.tx_errors++;
|
|
||||||
--
|
|
||||||
2.31.1
|
|
||||||
|
|
||||||
@ -1,49 +0,0 @@
|
|||||||
From 68e161867609dafcee1a20343990547a8da9be83 Mon Sep 17 00:00:00 2001
|
|
||||||
From: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
|
|
||||||
Date: Wed, 2 Aug 2023 13:10:03 +0000
|
|
||||||
Subject: [PATCH 5/5] net/sched: flower: fix possible OOB write
|
|
||||||
in-fl_set_geneve_opt()
|
|
||||||
|
|
||||||
CVE: CVE-2023-35788
|
|
||||||
|
|
||||||
commit 4d56304e5827c8cc8cc18c75343d283af7c4825c
|
|
||||||
Author: Hangyu Hua <hbh25y@gmail.com>
|
|
||||||
Date: Wed May 31 18:28:04 2023 +0800
|
|
||||||
|
|
||||||
net/sched: flower: fix possible OOB write in fl_set_geneve_opt()
|
|
||||||
|
|
||||||
If we send two TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets and their total
|
|
||||||
size is 252 bytes(key->enc_opts.len = 252) then
|
|
||||||
key->enc_opts.len = opt->length = data_len / 4 = 0 when the third
|
|
||||||
TCA_FLOWER_KEY_ENC_OPTS_GENEVE packet enters fl_set_geneve_opt. This
|
|
||||||
bypasses the next bounds check and results in an out-of-bounds.
|
|
||||||
|
|
||||||
Fixes: 0a6e77784f49 ("net/sched: allow flower to match tunnel options")
|
|
||||||
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
|
|
||||||
Reviewed-by: Simon Horman <simon.horman@corigine.com>
|
|
||||||
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
|
|
||||||
Link: https://lore.kernel.org/r/20230531102805.27090-1-hbh25y@gmail.com
|
|
||||||
|
|
||||||
Signed-off-by: Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com>
|
|
||||||
Reviewed-by: Laurence Rochfort <laurence.rochfort@oracle.com>
|
|
||||||
---
|
|
||||||
net/sched/cls_flower.c | 3 +++
|
|
||||||
1 file changed, 3 insertions(+)
|
|
||||||
|
|
||||||
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
|
|
||||||
index 041d63ff8..65b68bf36 100644
|
|
||||||
--- a/net/sched/cls_flower.c
|
|
||||||
+++ b/net/sched/cls_flower.c
|
|
||||||
@@ -1145,6 +1145,9 @@ static int fl_set_geneve_opt(const struct nlattr *nla, struct fl_flow_key *key,
|
|
||||||
if (option_len > sizeof(struct geneve_opt))
|
|
||||||
data_len = option_len - sizeof(struct geneve_opt);
|
|
||||||
|
|
||||||
+ if (key->enc_opts.len > FLOW_DIS_TUN_OPTS_MAX - 4)
|
|
||||||
+ return -ERANGE;
|
|
||||||
+
|
|
||||||
opt = (struct geneve_opt *)&key->enc_opts.data[key->enc_opts.len];
|
|
||||||
memset(opt, 0xff, option_len);
|
|
||||||
opt->length = data_len / 4;
|
|
||||||
--
|
|
||||||
2.31.1
|
|
||||||
|
|
||||||
@ -147,13 +147,13 @@ Summary: The Linux kernel
|
|||||||
# define buildid .local
|
# define buildid .local
|
||||||
%define specversion 5.14.0
|
%define specversion 5.14.0
|
||||||
%define patchversion 5.14
|
%define patchversion 5.14
|
||||||
%define pkgrelease 284.25.1.rt14.310
|
%define pkgrelease 284.18.1.rt14.303
|
||||||
%define kversion 5
|
%define kversion 5
|
||||||
%define tarfile_release 5.14.0-284.18.1.rt14.303.el9_2
|
%define tarfile_release 5.14.0-284.18.1.rt14.303.el9_2
|
||||||
# This is needed to do merge window version magic
|
# This is needed to do merge window version magic
|
||||||
%define patchlevel 14
|
%define patchlevel 14
|
||||||
# This allows pkg_release to have configurable %%{?dist} tag
|
# This allows pkg_release to have configurable %%{?dist} tag
|
||||||
%define specrelease 284.25.1.rt14.310%{?buildid}%{?dist}
|
%define specrelease 284.18.1.rt14.303%{?buildid}%{?dist}
|
||||||
# This defines the kabi tarball version
|
# This defines the kabi tarball version
|
||||||
%define kabiversion 5.14.0-284.18.1.rt14.303.el9_2
|
%define kabiversion 5.14.0-284.18.1.rt14.303.el9_2
|
||||||
|
|
||||||
@ -926,13 +926,6 @@ Source4002: gating.yaml
|
|||||||
Patch1: patch-%{patchversion}-redhat.patch
|
Patch1: patch-%{patchversion}-redhat.patch
|
||||||
%endif
|
%endif
|
||||||
|
|
||||||
# Patches from Oracle Linux kernel-rt package
|
|
||||||
Patch1200: 1200-KVM-x86-mmu-Fix-race-condition-in-direct_page_fault.patch
|
|
||||||
Patch1201: 1201-prlimit-do_prlimit-needs-to-have-a-speculation-check.patch
|
|
||||||
Patch1202: 1202-x86-speculation-Allow-enabling-STIBP-with-legacy-IBR.patch
|
|
||||||
Patch1203: 1203-ipvlan-Fix-out-of-bounds-caused-by-unclear-skb-cb.patch
|
|
||||||
Patch1204: 1204-net-sched-flower-fix-possible-OOB-write-in-fl_set_ge.patch
|
|
||||||
|
|
||||||
# empty final patch to facilitate testing of kernel patches
|
# empty final patch to facilitate testing of kernel patches
|
||||||
Patch999999: linux-kernel-test.patch
|
Patch999999: linux-kernel-test.patch
|
||||||
|
|
||||||
@ -1576,7 +1569,7 @@ ApplyPatch()
|
|||||||
if [ ! -f $RPM_SOURCE_DIR/$patch ]; then
|
if [ ! -f $RPM_SOURCE_DIR/$patch ]; then
|
||||||
exit 1
|
exit 1
|
||||||
fi
|
fi
|
||||||
if ! grep -E "^Patch[0-9]+: $patch\$" %{_specdir}/kernel.spec ; then
|
if ! grep -E "^Patch[0-9]+: $patch\$" %{_specdir}/${RPM_PACKAGE_NAME}.spec ; then
|
||||||
if [ "${patch:0:8}" != "patch-%{kversion}." ] ; then
|
if [ "${patch:0:8}" != "patch-%{kversion}." ] ; then
|
||||||
echo "ERROR: Patch $patch not listed as a source patch in specfile"
|
echo "ERROR: Patch $patch not listed as a source patch in specfile"
|
||||||
exit 1
|
exit 1
|
||||||
@ -1615,11 +1608,6 @@ cp -a %{SOURCE1} .
|
|||||||
ApplyOptionalPatch patch-%{patchversion}-redhat.patch
|
ApplyOptionalPatch patch-%{patchversion}-redhat.patch
|
||||||
%endif
|
%endif
|
||||||
|
|
||||||
ApplyPatch 1200-KVM-x86-mmu-Fix-race-condition-in-direct_page_fault.patch
|
|
||||||
ApplyPatch 1201-prlimit-do_prlimit-needs-to-have-a-speculation-check.patch
|
|
||||||
ApplyPatch 1202-x86-speculation-Allow-enabling-STIBP-with-legacy-IBR.patch
|
|
||||||
ApplyPatch 1203-ipvlan-Fix-out-of-bounds-caused-by-unclear-skb-cb.patch
|
|
||||||
ApplyPatch 1204-net-sched-flower-fix-possible-OOB-write-in-fl_set_ge.patch
|
|
||||||
ApplyOptionalPatch linux-kernel-test.patch
|
ApplyOptionalPatch linux-kernel-test.patch
|
||||||
|
|
||||||
# END OF PATCH APPLICATIONS
|
# END OF PATCH APPLICATIONS
|
||||||
@ -3539,13 +3527,6 @@ fi
|
|||||||
#
|
#
|
||||||
#
|
#
|
||||||
%changelog
|
%changelog
|
||||||
* Tue Aug 01 2023 Nagappan Ramasamy Palaniappan <nagappan.ramasamy.palaniappan@oracle.com> - [5.14.0-284.25.1.rt14.310.el9_2]
|
|
||||||
- KVM x86 mmuFix race condition in direct_page_fault
|
|
||||||
- prlimit do_prlimit needs to have a speculation check
|
|
||||||
- x86 speculation Allow enabling STIBP with legacy IBR
|
|
||||||
- ipvlan Fix out of bounds caused by unclear skb cb
|
|
||||||
- net sched flower fix possible OOB write in fl_set_geneve_opt
|
|
||||||
|
|
||||||
* Wed May 31 2023 Herton R. Krzesinski <herton@redhat.com> [5.14.0-284.18.1.rt14.303.el9_2]
|
* Wed May 31 2023 Herton R. Krzesinski <herton@redhat.com> [5.14.0-284.18.1.rt14.303.el9_2]
|
||||||
- [rt] build kernel-rt-5.14.0-284.18.1.rt14.303.el9_2 [2188313]
|
- [rt] build kernel-rt-5.14.0-284.18.1.rt14.303.el9_2 [2188313]
|
||||||
- x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL (Baoquan He) [2210614 2116317]
|
- x86/i8259: Mark legacy PIC interrupts with IRQ_LEVEL (Baoquan He) [2210614 2116317]
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user