diff options
| author | Kees Cook <kees@kernel.org> | 2025-08-04 08:40:27 -0700 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2025-08-15 11:50:47 +0200 |
| commit | 8503d0fcb1086a7cfe26df67ca4bd9bd9e99bdec (patch) | |
| tree | a06f03cebaf33b49cd80f97ac1eb683013898f41 /rust/kernel/error.rs | |
| parent | 8f5ae30d69d7543eee0d70083daf4de8fe15d585 (diff) | |
iommu/amd: Avoid stack buffer overflow from kernel cmdline
While the kernel command line is considered trusted in most environments,
avoid writing 1 byte past the end of "acpiid" if the "str" argument is
maximum length.
Reported-by: Simcha Kosman <simcha.kosman@cyberark.com>
Closes: https://lore.kernel.org/all/AS8P193MB2271C4B24BCEDA31830F37AE84A52@AS8P193MB2271.EURP193.PROD.OUTLOOK.COM
Fixes: b6b26d86c61c ("iommu/amd: Add a length limitation for the ivrs_acpihid command-line parameter")
Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Ankit Soni <Ankit.Soni@amd.com>
Link: https://lore.kernel.org/r/20250804154023.work.970-kees@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'rust/kernel/error.rs')
0 files changed, 0 insertions, 0 deletions