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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-90300

bpf: Clear buf on error in __bpf_get_task_stack

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df to < 5c4c57a277a87ed235183d03b671d346f5101f62affected
  • 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df to < 4acc761b4e3feca1eb648d21fc4d665b23c5372daffected
  • 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df to < 6f5a7bcc049709af12e403111d5e73e80910dafcaffected
  • 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df to < 1f0f61573ba4cb899105b5cef65be3ca02205f93affected
  • 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df to < f523359c4789bb0396d2d642464a6e2fd4f2299daffected
  • 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df to < f5d242825ca417bb6afe35fde6e8880f97ca43fbaffected
  • d921baabd96445ef9c9c9410ca06164359c8a1a5affected
  • 9c020a533eaae1c2d41a7e3835c4c818a9b4b656affected
  • ff6bdc205fd0a83bd365405d4e31fb5905826996affected
  • 5.10.30 to < 5.11affected
  • 5.11.14 to < 5.12affected
  • 5.10.96 to < 5.11affected

Linux Linux

Default version status: affected

  • 5.12affected
  • 0 to < 5.12unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.57 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References