CVE-2026-45959crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree Annotating a local pointer variable, which will be assigned with the kmalloc-family functions, with the `__cleanup(kfree)` attribute will make the address of the local variable, rather than the address returned by kmalloc, passed to kfree directly and lead to a crash due to invalid deallocation of stack address. According to other places in the repo, the correct usage should be `__free(kfree)`. The code coincidentally compiled because the parameter type `void *` of kfree is compatible with the desired type `struct { ... } **`.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from a71475582ada92ba021852bf3c2b40ab3718549b before 9a3ace9b010ffd8c422c97844ae152f7c53d6b18; from a71475582ada92ba021852bf3c2b40ab3718549b before 90f9090e3e744a8fe3bb6fa0e61f577347728b0b; from a71475582ada92ba021852bf3c2b40ab3718549b before d5abcc33ee76bc26d58b39dc1a097e43a99dd438 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.17 before 6.18.14; from 6.19 before 6.19.4 | NVD |
References
- https://git.kernel.org/stable/c/9a3ace9b010ffd8c422c97844ae152f7c53d6b18patch
- https://git.kernel.org/stable/c/90f9090e3e744a8fe3bb6fa0e61f577347728b0bpatch
- https://git.kernel.org/stable/c/d5abcc33ee76bc26d58b39dc1a097e43a99dd438patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.