CVE-2024-44968tick/broadcast: Move per CPU pointer access into the atomic section
- 5.5MediumCVSS base score
- 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: tick/broadcast: Move per CPU pointer access into the atomic section The recent fix for making the take over of the broadcast timer more reliable retrieves a per CPU pointer in preemptible context. This went unnoticed as compilers hoist the access into the non-preemptible region where the pointer is actually used. But of course it's valid that the compiler keeps it at the place where the code puts it which rightfully triggers: BUG: using smp_processor_id() in preemptible [00000000] code: caller is hotplug_cpu__broadcast_tick_pull+0x1c/0xc0 Move it to the actual usage site which is in a non-preemptible region.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 20 months later
· 20 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (15 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: Medium 5.5.
Affected products
- affected dfe19aa91378972f10530635ad83b2d77f481044 – < f54abf332a2bc0413cfa8bd6a8511f7aa99faea0
- affected 457a1c87d454455d671a3045cf0b56157be110a1 – < f91fb47ecacc178a83a77eeebd25cbaec18c01d6
- affected 9ef7190228145f959d9bc0ddca40ecf76bb413b0 – < 668c6c4a7e9e9f081c06b70f30104fb7013437ed
- affected d3b165c10473aa6fc6141bb5b1f6e5b50c1fb774 – < 541a900d245536d4809cb1aa322c3fcc2cdb58a6
- affected 408bfb6b0a7f22e971ce6b600aec448769e580a8 – < 7b3ec186ba93e333e9efe7254e7e31c1828e5d2d
- affected 3a58c590f6bd1d20eb1e76c5cea31c36cc032339 – < b9d604933d5fd72dd37f24e1dc35f778297d745a
- affected 2cdab4b4bf77369961f706cdeb7d040db10c5217 – < 7dd12f85f150010ef7518201c63fa7e395f5c3e9
- affected f7d43dd206e7e18c182f200e67a8db8c209907fa – < 6881e75237a84093d0986f56223db3724619f26e
- affected 6.1.103 – < 6.1.105
- affected 6.6.44 – < 6.6.46
- affected 6.10.3 – < 6.10.5
References
References10
- https://git.kernel.org/stable/c/f54abf332a2bc0413cfa8bd6a8511f7aa99faea0 (opens in a new tab)
- https://git.kernel.org/stable/c/f91fb47ecacc178a83a77eeebd25cbaec18c01d6 (opens in a new tab)
- https://git.kernel.org/stable/c/668c6c4a7e9e9f081c06b70f30104fb7013437ed (opens in a new tab)
- https://git.kernel.org/stable/c/541a900d245536d4809cb1aa322c3fcc2cdb58a6 (opens in a new tab)
- https://git.kernel.org/stable/c/7b3ec186ba93e333e9efe7254e7e31c1828e5d2d (opens in a new tab)
- https://git.kernel.org/stable/c/b9d604933d5fd72dd37f24e1dc35f778297d745a (opens in a new tab)
- https://git.kernel.org/stable/c/7dd12f85f150010ef7518201c63fa7e395f5c3e9 (opens in a new tab)
- https://git.kernel.org/stable/c/6881e75237a84093d0986f56223db3724619f26e (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html (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-2024-41170 (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-2024-44968)Record last updated .