- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Use u64 multiplication in update_rlimit_cpu() update_rlimit_cpu() converts the RLIMIT_CPU value to nanoseconds with u64 nsecs = rlim_new * NSEC_PER_SEC; On 32-bit kernels both rlim_new (unsigned long) and NSEC_PER_SEC (1000000000L) are 32-bit, so the multiplication is performed in unsigned long and truncated for rlim_new > 4 seconds before being widened to u64. The same file already casts to u64 for the matching computation in check_process_timers(): u64 softns = (u64)soft * NSEC_PER_SEC; As a result, the truncated value is installed into the CPUCLOCK_PROF expiry cache (nextevt), causing the process CPU timer to be programmed to fire prematurely for any RLIMIT_CPU soft limit >= 5 seconds. The actual SIGXCPU/SIGKILL decision in check_process_timers() already casts to u64 and is therefore correct, so limit enforcement is not broken; only the expiry-cache programming is wrong. Apply the same cast here so both paths convert rlim_cur identically. 64-bit kernels are unaffected.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 3 months later
· 3 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < feb5c87c8514444ba891b75a5a3eae57c64edaf8
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < 384628d6cdde0fcd76868606fad3ad8293100afb
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < 1fafc4d9b411645eb34de43362b966dc8fb3e263
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < cff8281bacd2866767e6194c3079d33b6c5a74f4
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < edf6babb9edd2d3e19229ade339081f439d4f478
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < ea6a188ee805e841a0e242f14d15953e0dfa74bb
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < 571e1f10b5996ba3e4dc63ea77de4aa309c384ce
- affected 858cf3a8c59968e7c5f7c1a1192459a0d52d1ab4 – < 26aff38fefb1d6cd87e22525f41cc8f1aa61b24f
- affected 4.11
- unaffected < 4.11
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/feb5c87c8514444ba891b75a5a3eae57c64edaf8 (opens in a new tab)
- https://git.kernel.org/stable/c/384628d6cdde0fcd76868606fad3ad8293100afb (opens in a new tab)
- https://git.kernel.org/stable/c/1fafc4d9b411645eb34de43362b966dc8fb3e263 (opens in a new tab)
- https://git.kernel.org/stable/c/cff8281bacd2866767e6194c3079d33b6c5a74f4 (opens in a new tab)
- https://git.kernel.org/stable/c/edf6babb9edd2d3e19229ade339081f439d4f478 (opens in a new tab)
- https://git.kernel.org/stable/c/ea6a188ee805e841a0e242f14d15953e0dfa74bb (opens in a new tab)
- https://git.kernel.org/stable/c/571e1f10b5996ba3e4dc63ea77de4aa309c384ce (opens in a new tab)
- https://git.kernel.org/stable/c/26aff38fefb1d6cd87e22525f41cc8f1aa61b24f (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)
- EUVD EUVD-2026-59026 (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-2026-72068)Record last updated .