diff --git a/Makefile.rhelver b/Makefile.rhelver
index fadc49cc56..437de81151 100644
--- a/Makefile.rhelver
+++ b/Makefile.rhelver
@@ -12,7 +12,7 @@ RHEL_MINOR = 10
 #
 # Use this spot to avoid future merge conflicts.
 # Do not trim this comment.
-RHEL_RELEASE = 553.158.1
+RHEL_RELEASE = 553.159.1
 
 #
 # ZSTREAM
diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c
index 02b9436bbb..4fbcdbc8bf 100644
--- a/arch/powerpc/platforms/pseries/lparcfg.c
+++ b/arch/powerpc/platforms/pseries/lparcfg.c
@@ -636,8 +636,7 @@ static ssize_t update_mpp(u64 *entitlement, u8 *weight)
 static ssize_t lparcfg_write(struct file *file, const char __user * buf,
 			     size_t count, loff_t * off)
 {
-	int kbuf_sz = 64;
-	char kbuf[kbuf_sz];
+	char kbuf[64];
 	char *tmp;
 	u64 new_entitled, *new_entitled_ptr = &new_entitled;
 	u8 new_weight, *new_weight_ptr = &new_weight;
@@ -646,7 +645,7 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
 	if (!firmware_has_feature(FW_FEATURE_SPLPAR))
 		return -EINVAL;
 
-	if (count > kbuf_sz)
+	if (count == 0 || count > sizeof(kbuf))
 		return -EINVAL;
 
 	if (copy_from_user(kbuf, buf, count))
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 731596c832..8d26768f4c 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -1759,7 +1759,9 @@ static void cpumsf_pmu_stop(struct perf_event *event, int flags)
 	event->hw.state |= PERF_HES_STOPPED;
 
 	if ((flags & PERF_EF_UPDATE) && !(event->hw.state & PERF_HES_UPTODATE)) {
-		hw_perf_event_update(event, 1);
+		/* CPU hotplug off removes SDBs. No samples to extract. */
+		if (cpuhw->flags & PMU_F_RESERVED)
+			hw_perf_event_update(event, 1);
 		event->hw.state |= PERF_HES_UPTODATE;
 	}
 	perf_pmu_enable(event->pmu);
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 7b28a2c490..25c91b6423 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -805,7 +805,7 @@ _partial_block_done_\@:
 
 .if (\i == 5) || (\i == 6) || (\i == 7)
 
-	MOVADQ		ONE(%RIP),\TMP1
+	MOVADQ		ONE(%rip),\TMP1
 	MOVADQ		0(%arg1),\TMP2
 .irpc index, \i_seq
 	paddd		\TMP1, \XMM0                 # INCR Y0
@@ -877,7 +877,7 @@ aes_loop_initial_\@:
 * Precomputations for HashKey parallel with encryption of first 4 blocks.
 * Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
 */
-	MOVADQ	   ONE(%RIP),\TMP1
+	MOVADQ	   ONE(%rip),\TMP1
 	paddd	   \TMP1, \XMM0              # INCR Y0
 	MOVADQ	   \XMM0, \XMM1
 	PSHUFB_XMM  %xmm14, \XMM1        # perform a 16 byte swap
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
index fc61345d49..1cdb714a70 100644
--- a/arch/x86/entry/calling.h
+++ b/arch/x86/entry/calling.h
@@ -6,6 +6,7 @@
 #include <asm/percpu.h>
 #include <asm/asm-offsets.h>
 #include <asm/processor-flags.h>
+#include <asm/ptrace-abi.h>
 #include <asm/msr.h>
 #include <asm/nospec-branch.h>
 
@@ -64,41 +65,6 @@ For 32-bit we have the following conventions - kernel is built with
  * for assembly code:
  */
 
-/* The layout forms the "struct pt_regs" on the stack: */
-/*
- * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
- * unless syscall needs a complete, fully filled "struct pt_regs".
- */
-#define R15		0*8
-#define R14		1*8
-#define R13		2*8
-#define R12		3*8
-#define RBP		4*8
-#define RBX		5*8
-/* These regs are callee-clobbered. Always saved on kernel entry. */
-#define R11		6*8
-#define R10		7*8
-#define R9		8*8
-#define R8		9*8
-#define RAX		10*8
-#define RCX		11*8
-#define RDX		12*8
-#define RSI		13*8
-#define RDI		14*8
-/*
- * On syscall entry, this is syscall#. On CPU exception, this is error code.
- * On hw interrupt, it's IRQ number:
- */
-#define ORIG_RAX	15*8
-/* Return frame for iretq */
-#define RIP		16*8
-#define CS		17*8
-#define EFLAGS		18*8
-#define RSP		19*8
-#define SS		20*8
-
-#define SIZEOF_PTREGS	21*8
-
 .macro PUSH_AND_CLEAR_REGS rdx=%rdx rax=%rax save_ret=0
 	.if \save_ret
 	pushq	%rsi		/* pt_regs->si */
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 7b9037da1a..749feb2e8c 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1324,6 +1324,8 @@ SYM_CODE_START_LOCAL(paranoid_entry)
 	IBRS_ENTER save_reg=%r15
 	UNTRAIN_RET
 
+	HANDLE_INTR_SAFERET 8(%rsp)
+
 	RET
 SYM_CODE_END(paranoid_entry)
 
@@ -1448,6 +1450,9 @@ SYM_CODE_START_LOCAL(error_entry)
 	movl	%ecx, %eax			/* zero extend */
 	cmpq	%rax, RIP+8(%rsp)
 	je	.Lbstep_iret
+
+	HANDLE_INTR_SAFERET 8(%rsp)
+
 	cmpq	$.Lgs_change, RIP+8(%rsp)
 	jne	.Lerror_entry_done_lfence
 
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index ef3a53b359..f568a69a97 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -11,6 +11,7 @@
 #include <asm/msr-index.h>
 #include <asm/unwind_hints.h>
 #include <asm/percpu.h>
+#include <asm/ptrace-abi.h>
 
 /*
  * This should be used immediately before a retpoline alternative. It tells
@@ -71,6 +72,50 @@
 	/* barrier for jnz misprediction */	\
 	lfence;
 
+/*
+ * Helper for detecting if an interrupt occurred at an unsafe location within
+ * Safe-RET.  If Safe-RET is interrupted after the CALL or LEA the RSB may get
+ * poisoned by the interrupt handler.
+ *
+ * The Safe-RET sequence is:
+ *
+ * CALL
+ * LEA 8(%RSP), %RSP
+ * RET
+ *
+ * The two CMPs below check whether RIP points to after the CALL or after the
+ * LEA.
+ *
+ * The LFENCE below is to address this particular speculation case:
+ *
+ * 1. Userspace runs and poisons the BTB around the safe-RET routine
+ *
+ * 2. Userspace triggers some kind of exception
+ *
+ * 3. Kernel executes error_entry() and mis-speculates the branch into thinking
+ *    it actually came from kernel space
+ *
+ * 4. The kernel then further mis-speculates that the exception occurred due
+ *    to an interrupted safe-RET
+ *
+ * 5. The handle_interrupted_saferet() routine speculatively executes and
+ *    speculatively does a safe-RET. But this is unsafe since it was never
+ *    untrained.
+ *
+ * The LFENCE fixes this by ensuring step 5 is never reached speculatively.
+ * Note that this LFENCE only occurs if safe-RET was actually interrupted (so
+ * it's outside of the normal path).
+ */
+#define __HANDLE_INTR_SAFERET(name, pt_regs)		\
+	cmpq	$(name), RIP+pt_regs;			\
+	jb	1f;					\
+	cmpq	$(name)+5, RIP+pt_regs;			\
+	ja	1f;					\
+	lfence;						\
+	leaq	pt_regs, %rdi;				\
+	call	handle_interrupted_saferet;		\
+	1:
+
 #ifdef __ASSEMBLY__
 
 /*
@@ -204,6 +249,15 @@
 #endif
 .endm
 
+.macro HANDLE_INTR_SAFERET pt_regs
+#ifdef CONFIG_MITIGATION_SRSO
+	ALTERNATIVE_2 "", \
+	__stringify(__HANDLE_INTR_SAFERET(srso_safe_ret, \pt_regs)), X86_FEATURE_SRSO, \
+	__stringify(__HANDLE_INTR_SAFERET(srso_alias_safe_ret, \pt_regs)), X86_FEATURE_SRSO_ALIAS
+
+#endif
+.endm
+
 /*
  * Macro to execute VERW instruction that mitigate transient data sampling
  * attacks such as MDS. On affected systems a microcode update overloaded VERW
@@ -454,6 +508,11 @@ static inline void mds_idle_clear_cpu_buffers(void)
 		mds_clear_cpu_buffers();
 }
 
+struct pt_regs;
+void srso_safe_ret(void);
+void srso_alias_safe_ret(void);
+void handle_interrupted_saferet(struct pt_regs *regs);
+
 #endif /* __ASSEMBLY__ */
 
 /*
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index f2dd27d070..2e7833431a 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -3200,3 +3200,42 @@ ssize_t cpu_show_vmscape(struct device *dev, struct device_attribute *attr, char
 	return cpu_show_common(dev, attr, buf, X86_BUG_VMSCAPE);
 }
 #endif
+
+#ifdef CONFIG_MITIGATION_SRSO
+/*
+ * Called during exception/interrupt entry if interrupted during the
+ * safe-RET sequence.  The safe-RET sequence consists of 3 instructions:
+ *
+ *	CALL
+ *	LEA 8(%RSP), %RSP
+ *	RET
+ *
+ * An interrupt after the CALL or after the LEA could potentially lead
+ * to branch predictor poisoning and results in the sequence not being
+ * able to be safely resumed.
+ *
+ * Therefore, modify the regs state as if the remaining part of the
+ * safe-RET sequence executed so the interrupt returns back to the
+ * desired return target, instead of the to the safe-RET sequence.
+ */
+void noinstr handle_interrupted_saferet(struct pt_regs *regs)
+{
+	unsigned long rip = regs->ip;
+
+	if (rip == (unsigned long) srso_safe_ret ||
+	    rip == (unsigned long) srso_alias_safe_ret) {
+	    /* Modify stack pointer as if LEA executed: */
+	    regs->sp += 8;
+	}
+
+	/*
+	 * Adjust registers as if RET executed:
+	 *
+	 * 1. Read the return address off the stack and into rIP:
+	 */
+	regs->ip = *(unsigned long *)(regs->sp);
+
+	/* 2. Pop rIP off the stack: */
+	regs->sp += 8;
+}
+#endif /* CONFIG_MITIGATION_SRSO */
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 87472ba5d1..9604f2b2d9 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -75,7 +75,7 @@ SYM_CODE_START_NOALIGN(startup_64)
 	mov	%rsi, %r15
 
 	/* Set up the stack for verify_cpu(), similar to initial_stack below */
-	leaq	(__end_init_task - SIZEOF_PTREGS)(%rip), %rsp
+	leaq	(__end_init_task - FRAME_SIZE)(%rip), %rsp
 
 	leaq	_text(%rip), %rdi
 
@@ -402,10 +402,10 @@ SYM_DATA(initial_vc_handler,   .quad handle_vc_boot_ghcb)
 #endif
 	GLOBAL(initial_stack)
 	/*
-	 * The SIZEOF_PTREGS gap is a convention which helps the in-kernel
+	 * The FRAME_SIZE gap is a convention which helps the in-kernel
 	 * unwinder reliably detect the end of the stack.
 	 */
-	.quad  init_thread_union + THREAD_SIZE - SIZEOF_PTREGS
+	.quad  init_thread_union + THREAD_SIZE - FRAME_SIZE
 	__FINITDATA
 
 	__INIT
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index a16ef97f1c..ccccd63a3e 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -14,6 +14,8 @@
 #include <asm/nospec-branch.h>
 #include <asm/unwind_hints.h>
 
+#undef RSP
+
 /*
  * Must be relocatable PIC code callable as a C function, in particular
  * there must be a plain RET and not jump to return thunk.
diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S
index dfb0378f76..cb9e33f88c 100644
--- a/arch/x86/lib/retpoline.S
+++ b/arch/x86/lib/retpoline.S
@@ -91,10 +91,24 @@ SYM_FUNC_END(srso_alias_untrain_ret)
 
 	.pushsection .text..__x86.rethunk_safe
 SYM_CODE_START_NOALIGN(srso_alias_safe_ret)
+
+	/*
+	 * Tell objtool that those are not function pointers referenced by
+	 * __HANDLE_INTR_SAFERET(). Below too.
+	 */
+	ANNOTATE_NOENDBR
+
+	/*
+	 * Safe-RET sequence. If you need to change it, adjust
+	 * handle_interrupted_saferet() too.
+	 */
 	lea 8(%_ASM_SP), %_ASM_SP
 	UNWIND_HINT_FUNC
+
+	ANNOTATE_NOENDBR
 	ANNOTATE_UNRET_SAFE
 	ret
+	/* End of Safe-RET sequence */
 	int3
 SYM_FUNC_END(srso_alias_safe_ret)
 
@@ -129,8 +143,14 @@ SYM_CODE_START_LOCAL_NOALIGN(srso_untrain_ret)
  * the stack.
  */
 SYM_INNER_LABEL(srso_safe_ret, SYM_L_GLOBAL)
+	/*
+	 * Safe-RET sequence. If you need to change it, adjust
+	 * handle_interrupted_saferet() too.
+	 */
 	lea 8(%_ASM_SP), %_ASM_SP
 	ret
+	/* End of Safe-RET sequence */
+
 	int3
 	int3
 	/* end of movabs */
diff --git a/configs/kernel-4.18.0-aarch64-debug.config b/configs/kernel-4.18.0-aarch64-debug.config
index eb94df5e4b..8b1748147a 100644
--- a/configs/kernel-4.18.0-aarch64-debug.config
+++ b/configs/kernel-4.18.0-aarch64-debug.config
@@ -1764,7 +1764,7 @@ CONFIG_BLK_DEV_NULL_BLK=m
 CONFIG_CDROM=m
 # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
 CONFIG_ZRAM=m
-CONFIG_ZRAM_WRITEBACK=y
+# CONFIG_ZRAM_WRITEBACK is not set
 # CONFIG_ZRAM_MEMORY_TRACKING is not set
 # CONFIG_BLK_DEV_DAC960 is not set
 # CONFIG_BLK_DEV_UMEM is not set
diff --git a/configs/kernel-4.18.0-aarch64.config b/configs/kernel-4.18.0-aarch64.config
index 7bb15ca984..740782ca8f 100644
--- a/configs/kernel-4.18.0-aarch64.config
+++ b/configs/kernel-4.18.0-aarch64.config
@@ -1782,7 +1782,7 @@ CONFIG_BLK_DEV_NULL_BLK=m
 CONFIG_CDROM=m
 # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
 CONFIG_ZRAM=m
-CONFIG_ZRAM_WRITEBACK=y
+# CONFIG_ZRAM_WRITEBACK is not set
 # CONFIG_ZRAM_MEMORY_TRACKING is not set
 # CONFIG_BLK_DEV_DAC960 is not set
 # CONFIG_BLK_DEV_UMEM is not set
diff --git a/configs/kernel-4.18.0-ppc64le-debug.config b/configs/kernel-4.18.0-ppc64le-debug.config
index 7f0efc81ee..c673bd2237 100644
--- a/configs/kernel-4.18.0-ppc64le-debug.config
+++ b/configs/kernel-4.18.0-ppc64le-debug.config
@@ -1721,7 +1721,7 @@ CONFIG_CDROM=m
 # CONFIG_PARIDE is not set
 # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
 CONFIG_ZRAM=m
-CONFIG_ZRAM_WRITEBACK=y
+# CONFIG_ZRAM_WRITEBACK is not set
 # CONFIG_ZRAM_MEMORY_TRACKING is not set
 # CONFIG_BLK_DEV_DAC960 is not set
 # CONFIG_BLK_DEV_UMEM is not set
diff --git a/configs/kernel-4.18.0-ppc64le.config b/configs/kernel-4.18.0-ppc64le.config
index cdbcbbc628..c04e88c638 100644
--- a/configs/kernel-4.18.0-ppc64le.config
+++ b/configs/kernel-4.18.0-ppc64le.config
@@ -1722,7 +1722,7 @@ CONFIG_CDROM=m
 # CONFIG_PARIDE is not set
 # CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set
 CONFIG_ZRAM=m
-CONFIG_ZRAM_WRITEBACK=y
+# CONFIG_ZRAM_WRITEBACK is not set
 # CONFIG_ZRAM_MEMORY_TRACKING is not set
 # CONFIG_BLK_DEV_DAC960 is not set
 # CONFIG_BLK_DEV_UMEM is not set
diff --git a/drivers/infiniband/sw/siw/siw_qp_rx.c b/drivers/infiniband/sw/siw/siw_qp_rx.c
index 97050863d8..5a5dc1cdfa 100644
--- a/drivers/infiniband/sw/siw/siw_qp_rx.c
+++ b/drivers/infiniband/sw/siw/siw_qp_rx.c
@@ -848,6 +848,15 @@ int siw_proc_rresp(struct siw_qp *qp)
 	}
 	mem_p = *mem;
 
+	if (unlikely(wqe->processed + srx->fpdu_part_rem > wqe->bytes)) {
+		siw_dbg_qp(qp, "rresp len: %d + %d > %d\n",
+			   wqe->processed, srx->fpdu_part_rem, wqe->bytes);
+		wqe->wc_status = SIW_WC_LOC_LEN_ERR;
+		siw_init_terminate(qp, TERM_ERROR_LAYER_DDP,
+				   DDP_ETYPE_TAGGED_BUF,
+				   DDP_ECODE_T_BASE_BOUNDS, 0);
+		return -EINVAL;
+	}
 	bytes = min(srx->fpdu_part_rem, srx->skb_new);
 
 	if (mem_p->mem_obj == NULL)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 0aa7025135..ae061a1cef 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3912,9 +3912,13 @@ static int bond_close(struct net_device *bond_dev)
 
 	bond_work_cancel_all(bond);
 	bond->send_peer_notif = 0;
+	WRITE_ONCE(bond->recv_probe, NULL);
+
+	/* Wait for any in-flight RX handlers */
+	synchronize_net();
+
 	if (bond_is_lb(bond))
 		bond_alb_deinitialize(bond);
-	bond->recv_probe = NULL;
 
 	if (bond_uses_primary(bond)) {
 		rcu_read_lock();
diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
index 3a31ba66b8..f1e991fa74 100644
--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
+++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
@@ -225,6 +225,12 @@ static void mana_hwc_rx_event_handler(void *ctx, u32 gdma_rxq_id,
 	rq_base_addr = hwc_rxq->msg_buf->mem_info.dma_handle;
 	rx_req_idx = (sge->address - rq_base_addr) / hwc->max_req_msg_size;
 
+	if (rx_req_idx >= hwc_rxq->msg_buf->num_reqs) {
+		dev_err(hwc->dev, "HWC RX: wrong rx_req_idx=%llu, num_reqs=%u\n",
+			rx_req_idx, hwc_rxq->msg_buf->num_reqs);
+		return;
+	}
+
 	rx_req = &hwc_rxq->msg_buf->reqs[rx_req_idx];
 	resp = (struct gdma_resp_hdr *)rx_req->buf_va;
 
diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index e9a776cfca..cf85a61c44 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -764,6 +764,9 @@ qede_tpa_rx_build_skb(struct qede_dev *edev,
 	struct sk_buff *skb;
 
 	skb = qede_build_skb(rxq, bd, len, pad);
+	if (unlikely(!skb))
+		return NULL;
+
 	bd->page_offset += rxq->rx_buf_seg_size;
 
 	if (bd->page_offset == PAGE_SIZE) {
@@ -811,6 +814,8 @@ qede_rx_build_skb(struct qede_dev *edev,
 	}
 
 	skb = qede_build_skb(rxq, bd, len, pad);
+	if (unlikely(!skb))
+		return NULL;
 
 	if (unlikely(qede_realloc_rx_buffer(rxq, bd))) {
 		/* Incr page ref count to reuse on allocation failure so
diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 73197f4bac..00976c1bdf 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -528,15 +528,7 @@ static inline void  smc_rcv(struct net_device *dev)
  * any other concurrent access and C would always interrupt B. But life
  * isn't that easy in a SMP world...
  */
-#define smc_special_trylock(lock, flags)				\
-({									\
-	int __ret;							\
-	local_irq_save(flags);						\
-	__ret = spin_trylock(lock);					\
-	if (!__ret)							\
-		local_irq_restore(flags);				\
-	__ret;								\
-})
+#define smc_special_trylock(lock, flags)	spin_trylock_irqsave(lock, flags)
 #define smc_special_lock(lock, flags)		spin_lock_irqsave(lock, flags)
 #define smc_special_unlock(lock, flags) 	spin_unlock_irqrestore(lock, flags)
 #else
@@ -2293,7 +2285,7 @@ static int smc_drv_probe(struct platform_device *pdev)
 		ret = try_toggle_control_gpio(&pdev->dev, &lp->power_gpio,
 					      "power", 0, 0, 100);
 		if (ret)
-			return ret;
+			goto out_free_netdev;
 
 		/*
 		 * Optional reset GPIO configured? Minimum 100 ns reset needed
@@ -2302,7 +2294,7 @@ static int smc_drv_probe(struct platform_device *pdev)
 		ret = try_toggle_control_gpio(&pdev->dev, &lp->reset_gpio,
 					      "reset", 0, 0, 100);
 		if (ret)
-			return ret;
+			goto out_free_netdev;
 
 		/*
 		 * Need to wait for optional EEPROM to load, max 750 us according
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 708d1bad19..722d225c53 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -3161,6 +3161,8 @@ static int nfs_open_permission_mask(int openflags)
 			mask |= MAY_READ;
 		if ((openflags & O_ACCMODE) != O_RDONLY)
 			mask |= MAY_WRITE;
+		if (openflags & O_TRUNC)
+			mask |= MAY_WRITE;
 	}
 
 	return mask;
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index af51f5cff8..3f05027eb7 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -459,6 +459,10 @@ ff_layout_alloc_lseg(struct pnfs_layout_hdr *lh,
 		if (!p)
 			goto out_err_free;
 		fh_count = be32_to_cpup(p);
+		if (fh_count == 0) {
+			rc = -EINVAL;
+			goto out_err_free;
+		}
 
 		fls->mirror_array[i]->fh_versions =
 			kcalloc(fh_count, sizeof(struct nfs_fh),
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 7eb627985c..a6453bf4d8 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2063,11 +2063,11 @@ lookup_again:
 		dprintk("%s wait for layoutreturn\n", __func__);
 		lseg = ERR_PTR(pnfs_prepare_to_retry_layoutget(lo));
 		if (!IS_ERR(lseg)) {
-			pnfs_put_layout_hdr(lo);
 			dprintk("%s retrying\n", __func__);
 			trace_pnfs_update_layout(ino, pos, count, iomode, lo,
 						 lseg,
 						 PNFS_UPDATE_LAYOUT_RETRY);
+			pnfs_put_layout_hdr(lo);
 			goto lookup_again;
 		}
 		trace_pnfs_update_layout(ino, pos, count, iomode, lo, lseg,
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index ca1331377b..2b8020b33c 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -1058,14 +1058,14 @@ nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags)
 	/* r_netid */
 	nlen = xdr_stream_decode_string_dup(xdr, &netid, XDR_MAX_NETOBJ,
 					    gfp_flags);
-	if (unlikely(nlen < 0))
+	if (unlikely(nlen <= 0))
 		goto out_err;
 
 	/* r_addr: ip/ip6addr with port in dec octets - see RFC 5665 */
 	/* port is ".ABC.DEF", 8 chars max */
 	rlen = xdr_stream_decode_string_dup(xdr, &buf, INET6_ADDRSTRLEN +
 					    IPV6_SCOPE_ID_LEN + 8, gfp_flags);
-	if (unlikely(rlen < 0))
+	if (unlikely(rlen <= 0))
 		goto out_free_netid;
 
 	/* replace port '.' with '-' */
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 39fd57cd69..49fc6aadca 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -127,10 +127,7 @@ static __be32 nfsacld_proc_setacl(struct svc_rqst *rqstp)
 	resp->status = fh_getattr(fh, &resp->stat);
 
 out:
-	/* argp->acl_{access,default} may have been allocated in
-	   nfssvc_decode_setaclargs. */
-	posix_acl_release(argp->acl_access);
-	posix_acl_release(argp->acl_default);
+	/* argp->acl_{access,default} are released in nfsaclsvc_release_setacl. */
 	return rpc_success;
 
 out_drop_lock:
@@ -308,6 +305,16 @@ static void nfsaclsvc_release_access(struct svc_rqst *rqstp)
 
 struct nfsd3_voidargs { int dummy; };
 
+static void nfsaclsvc_release_setacl(struct svc_rqst *rqstp)
+{
+	struct nfsd3_setaclargs *argp = rqstp->rq_argp;
+	struct nfsd_attrstat *resp = rqstp->rq_resp;
+
+	fh_put(&resp->fh);
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+}
+
 #define ST 1		/* status*/
 #define AT 21		/* attributes */
 #define pAT (1+AT)	/* post attributes - conditional */
@@ -339,7 +346,7 @@ static const struct svc_procedure nfsd_acl_procedures2[5] = {
 		.pc_func = nfsacld_proc_setacl,
 		.pc_decode = nfsaclsvc_decode_setaclargs,
 		.pc_encode = nfssvc_encode_attrstatres,
-		.pc_release = nfssvc_release_attrstat,
+		.pc_release = nfsaclsvc_release_setacl,
 		.pc_argsize = sizeof(struct nfsd3_setaclargs),
 		.pc_ressize = sizeof(struct nfsd_attrstat),
 		.pc_cachetype = RC_NOCACHE,
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index 66dbf1c5e1..e7273b30ba 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -114,10 +114,7 @@ out_drop_lock:
 out_errno:
 	resp->status = nfserrno(error);
 out:
-	/* argp->acl_{access,default} may have been allocated in
-	   nfs3svc_decode_setaclargs. */
-	posix_acl_release(argp->acl_access);
-	posix_acl_release(argp->acl_default);
+	/* argp->acl_{access,default} are released in nfs3svc_release_setacl. */
 	return rpc_success;
 }
 
@@ -221,6 +218,16 @@ static void nfs3svc_release_getacl(struct svc_rqst *rqstp)
 
 struct nfsd3_voidargs { int dummy; };
 
+static void nfs3svc_release_setacl(struct svc_rqst *rqstp)
+{
+	struct nfsd3_setaclargs *argp = rqstp->rq_argp;
+	struct nfsd3_attrstat *resp = rqstp->rq_resp;
+
+	fh_put(&resp->fh);
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+}
+
 #define ST 1		/* status*/
 #define AT 21		/* attributes */
 #define pAT (1+AT)	/* post attributes - conditional */
@@ -252,7 +259,7 @@ static const struct svc_procedure nfsd_acl_procedures3[3] = {
 		.pc_func = nfsd3_proc_setacl,
 		.pc_decode = nfs3svc_decode_setaclargs,
 		.pc_encode = nfs3svc_encode_setaclres,
-		.pc_release = nfs3svc_release_fhandle,
+		.pc_release = nfs3svc_release_setacl,
 		.pc_argsize = sizeof(struct nfsd3_setaclargs),
 		.pc_ressize = sizeof(struct nfsd3_attrstat),
 		.pc_cachetype = RC_NOCACHE,
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index 9dee516087..c0a38b6d8a 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -242,9 +242,7 @@ nfsd4_alloc_layout_stateid(struct nfsd4_compound_state *cstate,
 	BUG_ON(!ls->ls_file);
 
 	if (nfsd4_layout_setlease(ls)) {
-		fput(ls->ls_file);
-		put_nfs4_file(fp);
-		kmem_cache_free(nfs4_layout_stateid_cache, ls);
+		nfs4_put_stid(stp);
 		return NULL;
 	}
 
diff --git a/kernel.sbat b/kernel.sbat
index 6a602f00a2..52bdbdf87c 100644
--- a/kernel.sbat
+++ b/kernel.sbat
@@ -1,2 +1,2 @@
 sbat,1,SBAT Version,sbat,1,https://github.com/rhboot/shim/blob/main/SBAT.md
-kernel.centos,1,Red Hat,kernel-core,4.18.0-553.158.1.el8.x86_64,mailto:secalert@redhat.com
+kernel.centos,1,Red Hat,kernel-core,4.18.0-553.159.1.el8.x86_64,mailto:secalert@redhat.com
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 65c56bb2db..bc5d17ab56 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -296,6 +296,7 @@ static bool fib6_rule_suppress(struct fib_rule *rule, struct fib_lookup_arg *arg
 
 suppress_route:
 	ip6_rt_put(rt);
+	arg->result = NULL;
 	return true;
 }