CVE-2022-49548
bpf: Fix potential array overflow in bpf_trampoline_get_progs()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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.
Timeline
ID reserved
By Linux
Published
- 15 months later
· 15 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.30% · top 78% of all CVEs (8 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 88fd9e5352fe05f7fe57778293aebd4cd106960b – < 7f845de2863334bed4f362e95853f5e7bc323737
- affected 88fd9e5352fe05f7fe57778293aebd4cd106960b – < e36452d5da6325df7c10cffc60a9e68d21e2606d
- affected 88fd9e5352fe05f7fe57778293aebd4cd106960b – < 32c4559c61652f24c9fdd5440342196fe37453bc
- affected 88fd9e5352fe05f7fe57778293aebd4cd106960b – < 4f8897bcc20b9ae44758e0572538d741ab66f0dc
- affected 88fd9e5352fe05f7fe57778293aebd4cd106960b – < a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d
- affected 5.7
- unaffected < 5.7
- unaffected 5.10.120 – ≤ 5.10.*
- unaffected 5.15.45 – ≤ 5.15.*
- unaffected 5.17.13 – ≤ 5.17.*
- unaffected 5.18.2 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (5)
- https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737 (opens in a new tab)
- https://git.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d (opens in a new tab)
- https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc (opens in a new tab)
- https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc (opens in a new tab)
- https://git.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-49548)Record last updated .