diff options
| author | Pnina Feder <pnina.feder@mobileye.com> | 2025-12-16 16:28:01 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-01-21 06:44:20 +0300 |
| commit | b5bfcc1ffe512c7879cb90befdeabaa43d9f07ca (patch) | |
| tree | 5eece0f81ded891f28dbe3388626e2b0a954a51f /include/linux/errqueue.h | |
| parent | 76103d1b268e6f45735aa92d70bea5b5e8174a70 (diff) | |
| download | linux-b5bfcc1ffe512c7879cb90befdeabaa43d9f07ca.tar.xz | |
kernel/crash: handle multi-page vmcoreinfo in crash kernel copy
kimage_crash_copy_vmcoreinfo() currently assumes vmcoreinfo fits in a
single page. This breaks if VMCOREINFO_BYTES exceeds PAGE_SIZE.
Allocate the required order of control pages and vmap all pages needed to
safely copy vmcoreinfo into the crash kernel image.
Link: https://lkml.kernel.org/r/20251216132801.807260-3-pnina.feder@mobileye.com
Signed-off-by: Pnina Feder <pnina.feder@mobileye.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/errqueue.h')
0 files changed, 0 insertions, 0 deletions