Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: bpf: Clear buf on error in __bpf_get_task_stack Both bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that use __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM argument and we should initialize the buf on every return path. Adding missing buf memset for __bpf_get_task_stack fail paths. This provides deterministic buffer contents, which is useful when the buffer is used directly as a map key.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df before 4acc761b4e3feca1eb648d21fc4d665b23c5372d; affected 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df before 6f5a7bcc049709af12e403111d5e73e80910dafc; affected 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df before 1f0f61573ba4cb899105b5cef65be3ca02205f93; affected 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df before f523359c4789bb0396d2d642464a6e2fd4f2299d; affected 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df before f5d242825ca417bb6afe35fde6e8880f97ca43fb; affected d921baabd96445ef9c9c9410ca06164359c8a1a5; affected 9c020a533eaae1c2d41a7e3835c4c818a9b4b656; affected ff6bdc205fd0a83bd365405d4e31fb5905826996; affected 5.10.30 before 5.11; affected 5.11.14 before 5.12; affected 5.10.96 before 5.11 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4acc761b4e3feca1eb648d21fc4d665b23c5372d
- https://git.kernel.org/stable/c/6f5a7bcc049709af12e403111d5e73e80910dafc
- https://git.kernel.org/stable/c/1f0f61573ba4cb899105b5cef65be3ca02205f93
- https://git.kernel.org/stable/c/f523359c4789bb0396d2d642464a6e2fd4f2299d
- https://git.kernel.org/stable/c/f5d242825ca417bb6afe35fde6e8880f97ca43fb