CVE-2026-74404
- Source
- https://cve.org/CVERecord?id=CVE-2026-74404
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74404.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74404
- Downstream
- Published
- 2026-08-15T05:59:14.073Z
- Modified
- 2026-08-16T03:48:50.772695770Z
- Summary
- crypto: ccp - Fix snp_filter_reserved_mem_regions() off-by-one
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
crypto: ccp - Fix snpfilterreservedmemregions() off-by-one
Sashiko notes:
regarding the bounds check in snpfilterreservedmemregions() called via walkiomemresdesc(): does the check if ((rangelist->numelements * 16 + 8) > PAGESIZE) allow an off-by-one heap buffer overflow?
If rangelist->numelements is 255, 255 * 16 + 8 = 4088, which is <= 4096. Writing range->base (8 bytes) fills 4088-4095, but writing range->pagecount (4 bytes) would write to 4096-4099, overflowing the kzalloc-allocated PAGESIZE buffer.
Fix this by accounting for the entry about to be written to, in addition to the entries that are already allocated.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74404.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/1b864b6cb213bbd7b406e9b2e98c962077f300df
- https://git.kernel.org/stable/c/830c1f3e71989448652973375ef5e39b6ede47a3
- https://git.kernel.org/stable/c/af7341616b742ad2c374a90998bd650a035f694d
- https://git.kernel.org/stable/c/c5c79d92da0f9a09f48be5e2aabed2d6d1a96294
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74404.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74404
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introduced1ca5614b84eed5904f65f143e0e7aaab0ac4c6b2Fixed830c1f3e71989448652973375ef5e39b6ede47a3Fixedc5c79d92da0f9a09f48be5e2aabed2d6d1a96294Fixedaf7341616b742ad2c374a90998bd650a035f694dFixed1b864b6cb213bbd7b406e9b2e98c962077f300df