Vulnerability details
CVE-2022-49548
Linux Linux
bpf: Fix potential array overflow in bpf_trampoline_get_progs()
CVSS 3.1
7.8High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.7 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 88fd9e5352fe05f7fe57778293aebd4cd106960b ≤ v < 7f845de2863334bed4f362e95853f5e7bc323737 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 88fd9e5352fe05f7fe57778293aebd4cd106960b ≤ v < e36452d5da6325df7c10cffc60a9e68d21e2606d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 88fd9e5352fe05f7fe57778293aebd4cd106960b ≤ v < 32c4559c61652f24c9fdd5440342196fe37453bc | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 88fd9e5352fe05f7fe57778293aebd4cd106960b ≤ v < 4f8897bcc20b9ae44758e0572538d741ab66f0dc | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 88fd9e5352fe05f7fe57778293aebd4cd106960b ≤ v < a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://git.kernel.org/stable/c/7f845de2863334bed4f362e95853f5e7bc323737
- https://git.kernel.org/stable/c/e36452d5da6325df7c10cffc60a9e68d21e2606d
- https://git.kernel.org/stable/c/32c4559c61652f24c9fdd5440342196fe37453bc
- https://git.kernel.org/stable/c/4f8897bcc20b9ae44758e0572538d741ab66f0dc
- https://git.kernel.org/stable/c/a2aa95b71c9bbec793b5c5fa50f0a80d882b3e8d
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Details
- Published
- 2025-02-26
- Last updated
- 2026-05-11
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.29%
Probability of exploitation in 30 days
22.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-129Improper Validation of Array Index