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| author | Anton Gusev <[email protected]> | 2023-02-03 13:22:13 +0000 |
|---|---|---|
| committer | Ard Biesheuvel <[email protected]> | 2023-02-03 13:52:10 +0000 |
| commit | 966d47e1f27c45507c5df82b2a2157e5a4fd3909 (patch) | |
| tree | b43fa4ec2c1693a7a2ea380503df9aebe8c23bc7 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | efi: Accept version 2 of memory attributes table (diff) | |
| download | kernel-966d47e1f27c45507c5df82b2a2157e5a4fd3909.tar.gz kernel-966d47e1f27c45507c5df82b2a2157e5a4fd3909.zip | |
efi: fix potential NULL deref in efi_mem_reserve_persistent
When iterating on a linked list, a result of memremap is dereferenced
without checking it for NULL.
This patch adds a check that falls back on allocating a new page in
case memremap doesn't succeed.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 18df7577adae ("efi/memreserve: deal with memreserve entries in unmapped memory")
Signed-off-by: Anton Gusev <[email protected]>
[ardb: return -ENOMEM instead of breaking out of the loop]
Signed-off-by: Ard Biesheuvel <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions