CVE-2024-44968
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-44968
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-44968.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-44968
- Downstream
- Related
- Published
- 2024-09-04T18:56:45.456Z
- Modified
- 2025-12-01T12:15:40.795496Z
- Summary
- tick/broadcast: Move per CPU pointer access into the atomic section
- Details
-
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 smpprocessorid() in preemptible [00000000] code: caller is hotplugcpubroadcasttick_pull+0x1c/0xc0
Move it to the actual usage site which is in a non-preemptible region.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44968.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/541a900d245536d4809cb1aa322c3fcc2cdb58a6
- https://git.kernel.org/stable/c/668c6c4a7e9e9f081c06b70f30104fb7013437ed
- https://git.kernel.org/stable/c/6881e75237a84093d0986f56223db3724619f26e
- https://git.kernel.org/stable/c/7b3ec186ba93e333e9efe7254e7e31c1828e5d2d
- https://git.kernel.org/stable/c/7dd12f85f150010ef7518201c63fa7e395f5c3e9
- https://git.kernel.org/stable/c/b9d604933d5fd72dd37f24e1dc35f778297d745a
- https://git.kernel.org/stable/c/f54abf332a2bc0413cfa8bd6a8511f7aa99faea0
- https://git.kernel.org/stable/c/f91fb47ecacc178a83a77eeebd25cbaec18c01d6
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/44xxx/CVE-2024-44968.json
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-44968
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceddfe19aa91378972f10530635ad83b2d77f481044Fixedf54abf332a2bc0413cfa8bd6a8511f7aa99faea0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced457a1c87d454455d671a3045cf0b56157be110a1Fixedf91fb47ecacc178a83a77eeebd25cbaec18c01d6
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9ef7190228145f959d9bc0ddca40ecf76bb413b0Fixed668c6c4a7e9e9f081c06b70f30104fb7013437ed
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedd3b165c10473aa6fc6141bb5b1f6e5b50c1fb774Fixed541a900d245536d4809cb1aa322c3fcc2cdb58a6
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced408bfb6b0a7f22e971ce6b600aec448769e580a8Fixed7b3ec186ba93e333e9efe7254e7e31c1828e5d2d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced3a58c590f6bd1d20eb1e76c5cea31c36cc032339Fixedb9d604933d5fd72dd37f24e1dc35f778297d745a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced2cdab4b4bf77369961f706cdeb7d040db10c5217Fixed7dd12f85f150010ef7518201c63fa7e395f5c3e9
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf7d43dd206e7e18c182f200e67a8db8c209907faFixed6881e75237a84093d0986f56223db3724619f26e