CVE-2022-48770 (GCVE-0-2022-48770)

Vulnerability from cvelistv5 – Published: 2024-06-20 11:13 – Updated: 2026-05-11 18:46
VLAI
Title
bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack() task_pt_regs() can return NULL on powerpc for kernel threads. This is then used in __bpf_get_stack() to check for user mode, resulting in a kernel oops. Guard against this by checking return value of task_pt_regs() before trying to obtain the call chain.
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:10 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 , < ff6bdc205fd0a83bd365405d4e31fb5905826996 (git)
Affected: fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 , < 0bcd484587b3b3092e448d27dc369e347e1810c3 (git)
Affected: fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 , < b82ef4985a6d05e80f604624332430351df7b79a (git)
Affected: fa28dcb82a38f8e3993b0fae9106b1a80b59e4f0 , < b992f01e66150fc5e90be4a96f5eb8e634c8249e (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.9
Unaffected: 0 , < 5.9 (semver)
Unaffected: 5.10.96 , ≤ 5.10.* (semver)
Unaffected: 5.15.19 , ≤ 5.15.* (semver)
Unaffected: 5.16.5 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.