Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Use krealloc_array() in dal_vector_reserve() [Why & How] dal_vector_reserve() computes the allocation size as "capacity * vector->struct_size" using uint32_t arithmetic, which can silently wrap to a small value on overflow. This would cause krealloc to return a smaller buffer than expected, leading to heap overflows on subsequent vector appends. Replace krealloc() with krealloc_array() which performs an internal overflow check and returns NULL on wrap, preventing the issue. (cherry picked from commit 37668568641ccc4cc1dbca4923d0a16609dd5707)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 2004f45ef83f07f43f5da6ede780b08068c7583d before 9540b0a4d13e4ede64ae1197d66a176d2149daa9; affected 2004f45ef83f07f43f5da6ede780b08068c7583d before 31180638a33acad12c863132704a76536fb66211; affected 2004f45ef83f07f43f5da6ede780b08068c7583d before b15825deac1acff72638bbc8f05b89ceef8dfb13; affected 2004f45ef83f07f43f5da6ede780b08068c7583d before 201151e120f0062bcda21cad5d007b82725ad23b; affected 2004f45ef83f07f43f5da6ede780b08068c7583d before a914aa802669e073f014dae2e5708633b5cecd34; affected 2004f45ef83f07f43f5da6ede780b08068c7583d before e09689286385a66311ac6922af95339d7a3cef8d; affected 2004f45ef83f07f43f5da6ede780b08068c7583d before de988c7a31f0774f07894cfe4802996f318e2870; affected 2004f45ef83f07f43f5da6ede780b08068c7583d before da48bc4461b8a5ebfb9264c9b191a701d8e99009 |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 5.10.260 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.94 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/9540b0a4d13e4ede64ae1197d66a176d2149daa9
- https://git.kernel.org/stable/c/31180638a33acad12c863132704a76536fb66211
- https://git.kernel.org/stable/c/b15825deac1acff72638bbc8f05b89ceef8dfb13
- https://git.kernel.org/stable/c/201151e120f0062bcda21cad5d007b82725ad23b
- https://git.kernel.org/stable/c/a914aa802669e073f014dae2e5708633b5cecd34
- https://git.kernel.org/stable/c/e09689286385a66311ac6922af95339d7a3cef8d
- https://git.kernel.org/stable/c/de988c7a31f0774f07894cfe4802996f318e2870
- https://git.kernel.org/stable/c/da48bc4461b8a5ebfb9264c9b191a701d8e99009
ADP enrichment
No English description supplied.
No references supplied.