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TI-2026-62370 Aliases CVE-2026-92485GHSA-hhjv-qj57-f47f

bpf: Fix WARNING in bpf_tracing_link_release

Priority LOW 33Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.00165 5th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.191, 6.6.160, 6.6 +4Red Hat: 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.1.72 to before 6.1.191; 6.6.2 to before 6.6.160; 6.5.12 to before 6.66.1.191, 6.6.160, 6.6Patch availableCNA
LinuxLinux6.7 and later6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3Patch availableCNA
  • Linux VendorLinux Affected 6.1.72 to before 6.1.191; 6.6.2 to before 6.6.160; 6.5.12 to before 6.6 Fixed in 6.1.191, 6.6.160, 6.6 Patch available CNA
  • Linux VendorLinux Affected 6.7 and later Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.6
  • Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.57, 7.2.6, 7.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 5AffectedNo fix yet: Fix deferred
Not affected: 5 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-92485
  2. 2026-10-03 Alias added: GHSA-hhjv-qj57-f47f
  3. 2026-10-16 Fix available: Linux/Linux@094f0a895cf97a993d06d5dc4c12e7cb7da845a5, Linux/[email protected] · CNA
  4. 2026-10-16 1 new reference · CNA
  5. 2026-10-19 Fix available: Linux/[email protected] · CNA
  6. 2026-10-20 Affected versions changed · Red Hat
  7. 2026-10-20 CVSS score added · Red Hat
  8. 2026-10-21 Fix available: Linux/[email protected], Linux/[email protected], Linux/Linux@a5c6316052f0ff1467221ecf2996cbab0a496b1e +1 · CNA
  9. 2026-10-21 2 new references · CNA
  10. 2026-10-23 Affected versions changed · Red Hat
  11. 2026-10-23 CVSS score changed · Red Hat
  12. 2026-10-29 Affected versions changed · Red Hat
  13. 2026-10-30 Fix available: Linux/Linux@1757598b3804f7cb35b5b5e02558f6d8b9c2f254, Linux/[email protected] · CNA
  14. 2026-10-30 1 new reference · CNA
  15. 2026-10-30 Affected versions changed · Red Hat

References

Other 6

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
See all 21727 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences