CVE-2026-74352

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Source
https://cve.org/CVERecord?id=CVE-2026-74352
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74352.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74352
Downstream
Published
2026-08-15T05:58:38.710Z
Modified
2026-08-16T03:48:49.665454391Z
Summary
of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails
Details

In the Linux kernel, the following vulnerability has been resolved:

of: reservedmem: avoid post-init UAF when allocreservedmemarray() fails

The global pointer 'reservedmem' continues to reference the reservedmem_array which lives in __initdata if allocreservedmemarray() fails. ofreservedmemlookup() is exported for post-init use, that would dereference freed memory and trigger a use-after-free.

So reset reservedmemcount to 0 when allocreservedmem_array() fails.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74352.json",
    "cna_assigner": "Linux"
}
References

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
Introduced
b6ae53301eb41f0f59f83c161248b186bca7da70
Fixed
6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
00c9a452a235c61f099504783badd9a7675ff5a5
Fixed
9af58d10d0d8c08b822de5fc99e61f31a87ede8d
Fixed
cbd3102fe27bc87da244bf4c3ba670ea4698b0a8
Fixed
e1686ca81dbf3edbde589b7daf312b45cbf76e03

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74352.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74352.json"