smack: fix bug: unprivileged task can create labels
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: smack: fix bug: unprivileged task can create labels If an unprivileged task is allowed to relabel itself (/smack/relabel-self is not empty), it can freely create new labels by writing their names into own /proc/PID/attr/smack/current This occurs because do_setattr() imports the provided label in advance, before checking "relabel-self" list. This change ensures that the "relabel-self" list is checked before importing the label.
Why it matters now
EPSS 0.00198 9th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.248, 5.15.198, 6.1.160 +5
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68733
- 2026-10-03 Alias added: GHSA-5mmp-9c8m-j75x
References
Other 8
- https://git.kernel.org/stable/c/c80173233014a360c13fa5cc79d36bfe6e53a8ed
- https://git.kernel.org/stable/c/6b1e45e13546c9ea0b1d99097993ac0aafae90b1
- https://git.kernel.org/stable/c/4a7a7621619a366712fb9cefcb6e69f956c247ce
- https://git.kernel.org/stable/c/f8fd5491100f920847a3338d5fba22db19c72773
- https://git.kernel.org/stable/c/ac9fce2efabad37c338aac86fbe100f77a080e59
- https://git.kernel.org/stable/c/64aa81250171b6bb6803e97ea7a5d73bfa061f6e
- https://git.kernel.org/stable/c/60e8d49989410a7ade60f5dadfcd979c117d05c0
- https://git.kernel.org/stable/c/c147e13ea7fe9f118f8c9ba5e96cbd644b00d6b3
More Linux vulnerabilities
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- 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
Sources
- CVE-2025-68733 · CVE Program
- CVE-2025-68733 · NVD
- FIRST EPSS
- GHSA-5mmp-9c8m-j75x · GitHub Advisory Database · CC BY 4.0
- CVE-2025-68733 · Red Hat security data · CC BY 4.0
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