CVE-2022-49548 (GCVE-0-2022-49548)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2025-10-01 19:46
VLAI?
Title
bpf: Fix potential array overflow in bpf_trampoline_get_progs()
Summary
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does not include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline can exceed BPF_MAX_TRAMP_PROGS. When this happens, the assignment '*progs++ = aux->prog' in bpf_trampoline_get_progs() will cause progs array overflow as the progs field in the bpf_tramp_progs struct can only hold at most BPF_MAX_TRAMP_PROGS bpf programs.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-129 - Improper Validation of Array Index
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 88fd9e5352fe05f7fe57778293aebd4cd106960b , < 7f845de2863334bed4f362e95853f5e7bc323737 (git)
Affected: 88fd9e5352fe05f7fe57778293aebd4cd106960b , < e36452d5da6325df7c10cffc60a9e68d21e2606d (git)
Affected: 88fd9e5352fe05f7fe57778293aebd4cd106960b , < 32c4559c61652f24c9fdd5440342196fe37453bc (git)
Affected: 88fd9e5352fe05f7fe57778293aebd4cd106960b , < 4f8897bcc20b9ae44758e0572538d741ab66f0dc (git)
Affected: 88fd9e5352fe05f7fe57778293aebd4cd106960b , < a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d (git)
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    Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.120 , ≤ 5.10.* (semver)
Unaffected: 5.15.45 , ≤ 5.15.* (semver)
Unaffected: 5.17.13 , ≤ 5.17.* (semver)
Unaffected: 5.18.2 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.