42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
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From 1be446cb5fbc442103dbb54279f3cc3a61b4c0ff Mon Sep 17 00:00:00 2001
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From: Kazuhito Hagio <k-hagio-ab@nec.com>
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Date: Wed, 20 Jan 2021 15:16:24 +0900
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Subject: [PATCH 09/13] Fix "sys [-t]|mod -S" after "mod -t" when crash runs
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with -s option
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When crash runs with -s option, SIZE(taint_flag) and OFFSET(tnt_false)
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are not set during initialization. If the "mod -t" option is executed,
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it sets the former but does not set the latter. After that, the "sys"
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command uses OFFSET(tnt_false) without setting it, because it checks
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only whether SIZE(taint_flag) is set.
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Without the patch, the "sys [-t]" and "mod -S" options after "mod -t"
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option fail with the error message:
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sys: invalid structure member offset: tnt_false
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FILE: kernel.c LINE: 11203 FUNCTION: show_kernel_taints_v4_10()
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Signed-off-by: Kazuhito Hagio <k-hagio-ab@nec.com>
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Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
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---
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kernel.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/kernel.c b/kernel.c
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index 272e0d8751cf..5fcd86575be5 100644
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--- a/kernel.c
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+++ b/kernel.c
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@@ -11160,7 +11160,8 @@ show_kernel_taints_v4_10(char *buf, int verbose)
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ulong tainted_mask, *tainted_mask_ptr;
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struct syment *sp;
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- if (!VALID_STRUCT(taint_flag)) {
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+ if (!(VALID_STRUCT(taint_flag) &&
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+ VALID_MEMBER(tnt_true) && VALID_MEMBER(tnt_false))) {
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STRUCT_SIZE_INIT(taint_flag, "taint_flag");
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MEMBER_OFFSET_INIT(tnt_true, "taint_flag", "true");
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MEMBER_OFFSET_INIT(tnt_false, "taint_flag", "false");
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--
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2.17.1
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