Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix integer overflow in radeon_align_pitch() radeon_align_pitch() has the same kind of overflow issue as the old amdgpu helper: both the alignment round-up add and the final 'aligned * cpp' calculation can overflow signed int. If that wraps, radeon_mode_dumb_create() can end up returning an invalid pitch or creating a zero-sized dumb buffer. Fix this by using check_add_overflow() for the alignment round-up and check_mul_overflow() for the final pitch calculation, returning 0 on overflow. Also reject zero pitch and size in radeon_mode_dumb_create(). Found via AST-based call-graph analysis using sqry.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ff72145badb834e8051719ea66e024784d000cb4 before b7b44937c548c2c987fcdd129f8896741004bed6; affected ff72145badb834e8051719ea66e024784d000cb4 before 415bb9893e249e46aa5159f7363a11512cf06fa9; affected ff72145badb834e8051719ea66e024784d000cb4 before d9dfa176899d488e48bb7342d2c43ddd36e66318; affected ff72145badb834e8051719ea66e024784d000cb4 before dfc7b5b5599472277e71e5bd2712740651c7c5be; affected ff72145badb834e8051719ea66e024784d000cb4 before ce3b24eb3ee8f82de851535f516bf21f83e82259 |
| Linux / Linux | affected 2.6.39; unaffected 0 before 2.6.39; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b7b44937c548c2c987fcdd129f8896741004bed6
- https://git.kernel.org/stable/c/415bb9893e249e46aa5159f7363a11512cf06fa9
- https://git.kernel.org/stable/c/d9dfa176899d488e48bb7342d2c43ddd36e66318
- https://git.kernel.org/stable/c/dfc7b5b5599472277e71e5bd2712740651c7c5be
- https://git.kernel.org/stable/c/ce3b24eb3ee8f82de851535f516bf21f83e82259
ADP enrichment
No English description supplied.
No references supplied.