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TI-2022-25770 Aliases CVE-2022-50285GHSA-m6mf-ph7p-75j2

mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages

Priority LOW 24Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 3 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages The h->*_huge_pages counters are protected by the hugetlb_lock, but alloc_huge_page has a corner case where it can decrement the counter outside of the lock. This could lead to a corrupted value of h->resv_huge_pages, which we have observed on our systems. Take the hugetlb_lock before decrementing h->resv_huge_pages to avoid a potential race.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0016 5th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.4, 4.9.332, 4.14.298 +6Red Hat: 1 advisoryRed Hat: 3 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.3.6 to before 4.44.4Patch availableCNA
LinuxLinux4.4 and later4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.76, 6.0.6, 6.1Patch availableCNA
  • Linux VendorLinux Affected 4.3.6 to before 4.4 Fixed in 4.4 Patch available CNA
  • Linux VendorLinux Affected 4.4 and later Fixed in 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.76, 6.0.6, 6.1 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.3.6 to before 4.4; 4.4.1 to before 4.9.332; 4.10 to before 4.14.298; 4.15 to before 4.19.264; 4.20 to before 5.4.223; 5.5 to before 5.10.153; 5.11 to before 5.15.76; 5.16 to before 6.0.6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.4:-:*:*:*:*:*:*4.4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.4:rc5:*:*:*:*:*:*4.4 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.4:rc6:*:*:*:*:*:*4.4 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.4:rc7:*:*:*:*:*:*4.4 rc7VulnerableLinux
cpe:2.3:o:linux:linux_kernel:4.4:rc8:*:*:*:*:*:*4.4 rc8VulnerableLinux
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*6.1 rc1VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.3.6 to before 4.4; 4.4.1 to before 4.9.332; 4.10 to before 4.14.298; 4.15 to before 4.19.264; 4.20 to before 5.4.223; 5.5 to before 5.10.153; 5.11 to before 5.15.76; 5.16 to before 6.0.6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.4:-:*:*:*:*:*:* Versions 4.4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.4:rc5:*:*:*:*:*:* Versions 4.4 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.4:rc6:*:*:*:*:*:* Versions 4.4 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.4:rc7:*:*:*:*:*:* Versions 4.4 rc7 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:4.4:rc8:*:*:*:*:*:* Versions 4.4 rc8 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* Versions 6.1 rc1 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.4
  • Fix · CNA Linux (Linux) Fixed in 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.76, 6.0.6, 6.1

Red Hat 1 advisory

  • RHSA-2023:2458 Released 2023-05-09 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.11.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.11.1.el9_2, kernel-64k-devel-5.14.0-284.11.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.11.1.el9_2, kernel-5.14.0-284.11.1.el9_2, kernel-64k-5.14.0-284.11.1.el9_2 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.11.1.el9_2

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 8AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2023:2458
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-50285
  2. 2026-10-03 Alias added: GHSA-m6mf-ph7p-75j2
  3. 2026-11-05 CISA SSVC decision points changed

References

Patch 8

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences