CVE-2022-50285
- Source
- https://cve.org/CVERecord?id=CVE-2022-50285
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50285.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-50285
- Downstream
- Related
- Published
- 2025-09-15T14:21:21.504Z
- Modified
- 2026-03-20T11:47:22.185488Z
- Summary
- mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mm,hugetlb: take hugetlblock before decrementing h->resvhuge_pages
The h->*hugepages counters are protected by the hugetlblock, but allochuge_page has a corner case where it can decrement the counter outside of the lock.
This could lead to a corrupted value of h->resvhugepages, which we have observed on our systems.
Take the hugetlblock before decrementing h->resvhuge_pages to avoid a potential race.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50285.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/112a005d1ded04a4b41b6d01833cc0bda90625cc
- https://git.kernel.org/stable/c/11993652d0b49e27272db0a37aa828d8a3a4b92b
- https://git.kernel.org/stable/c/12df140f0bdfae5dcfc81800970dd7f6f632e00c
- https://git.kernel.org/stable/c/2b35432d324898ec41beb27031d2a1a864a4d40e
- https://git.kernel.org/stable/c/3e50a07b6a5fcd39df1534d3fdaca4292a65efe6
- https://git.kernel.org/stable/c/568e3812b1778b4c0c229649b59977d88f400ece
- https://git.kernel.org/stable/c/629c986e19fe9481227c7cdfd9a105bbc104d245
- https://git.kernel.org/stable/c/c828fab903725279aa9dc6ae3d44bb7e4778f92c
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50285.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50285
- 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
-
Introduceda88c769548047b21f76fd71e04b6a3300ff17160Fixed3e50a07b6a5fcd39df1534d3fdaca4292a65efe6Fixed629c986e19fe9481227c7cdfd9a105bbc104d245Fixed2b35432d324898ec41beb27031d2a1a864a4d40eFixed11993652d0b49e27272db0a37aa828d8a3a4b92bFixed568e3812b1778b4c0c229649b59977d88f400eceFixed112a005d1ded04a4b41b6d01833cc0bda90625ccFixedc828fab903725279aa9dc6ae3d44bb7e4778f92cFixed12df140f0bdfae5dcfc81800970dd7f6f632e00c
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affected3f5fae4d1a3189d95b02b4b45e1218df147122bc