diff options
| author | Rik van Riel <riel@surriel.com> | 2023-08-17 13:57:59 -0400 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2023-08-18 11:47:45 -0500 |
| commit | f0362a253606e2031f8d61c74195d4d6556e12a4 (patch) | |
| tree | 4a5a677470d60b9eee28fed1d804f0d1a6c09c69 /drivers/net/ethernet/intel/igc/igc_dump.c | |
| parent | ffc59c6414f9ffd52591786efe3e62e145563deb (diff) | |
mm,ima,kexec,of: use memblock_free_late from ima_free_kexec_buffer
The code calling ima_free_kexec_buffer runs long after the memblock
allocator has already been torn down, potentially resulting in a use
after free in memblock_isolate_range.
With KASAN or KFENCE, this use after free will result in a BUG
from the idle task, and a subsequent kernel panic.
Switch ima_free_kexec_buffer over to memblock_free_late to avoid
that issue.
Fixes: fee3ff99bc67 ("powerpc: Move arch independent ima kexec functions to drivers/of/kexec.c")
Cc: stable@kernel.org
Signed-off-by: Rik van Riel <riel@surriel.com>
Suggested-by: Mike Rappoport <rppt@kernel.org>
Link: https://lore.kernel.org/r/20230817135759.0888e5ef@imladris.surriel.com
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_dump.c')
0 files changed, 0 insertions, 0 deletions