7.8

CVE-2026-92485: linux

CVSS: 7.8v3.1HighReceived
AliasesUBUNTU-CVE-2026-92485DEBIAN-CVE-2026-92485
Published 17-09-2026Last modified 21-10-2026
Open JSON

Vulnerability summary

CVE-2026-92485 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11893-1

Timeline

  1. 17-09-2026
    PublishedVulnerability first disclosed.
  2. 21-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix WARNING in bpf_tracing_link_release The trampoline could be corrupted by the blindly 'tr->flags = BPF_TRAMP_F_TAIL_CALL_CTX' in verifier. 1. A fexit attached to a tail_call_reachable prog. 'tr->flags' became 'BPF_TRAMP_F_CALL_ORIG | BPF_TRAMP_F_TAIL_CALL_CTX'. And, the trampoline would poke the target prog's nop insn using jmp insn instead of call insn. 2. Another fexit loaded with the same tail_call_reachable prog target. 'tr->flags' became 'BPF_TRAMP_F_TAIL_CALL_CTX'. 3. Close the first fexit link. Due to no BPF_TRAMP_F_CALL_ORIG in 'tr->flags', the trampoline will fail to restore the prog's nop insn using call insn. [ 3.410719] WARNING: kernel/bpf/syscall.c:3551 at bpf_tracing_link_release+0x53/0x60, CPU#1: test_progs/98 ... [ 3.428793] bpf_link_free+0x58/0x130 [ 3.429293] bpf_link_release+0x23/0x30 Fix the warning by updating 'tr->flags' with '|=' and lock.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

+0.02 pp

From 0.15% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu142 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linuxAll versions (No fix recorded) | < 7.2.6-1
Linux1 product
  • linux≥ 8f873cc3f67f2257493063e57d0caf07ef889ee9, < a5c6316052f0ff1467221ecf2996cbab0a496b1e | ≥ 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544, < d02035c5eb4955616efc5c6dbe3d98f19d798cb2 | ≥ 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544, < 094f0a895cf97a993d06d5dc4c12e7cb7da845a5 | ≥ 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544, < 48a0209d8da0d90a7b0a0db19d1ff88027b13781 | ≥ 2b5dcb31a19a2e0acd869b12c9db9b2d696ef544, < 61aaa8782bec59ecffd22e030f54ef9351bcabf9 | 605c8d8f9966fcd2f0b858fabebe416fc83f2209 | 028480eaf2a1401e914a1fa1a4a21d877cf0ae30 | ≥ 6.6.2, < 6.6.160 | ≥ 6.1.72, < 6.2 | ≥ 6.5.12, < 6.6 | 6.7

3 vendors · 144 products

References

9 links