CVE-2026-53097
- Source
- https://cve.org/CVERecord?id=CVE-2026-53097
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-53097.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-53097
- Downstream
- Related
- Published
- 2026-06-24T16:30:35Z
- Modified
- 2026-08-27T18:26:53Z
- Summary
- wifi: mt76: mt7996: fix use-after-free bugs in mt7996_mac_dump_work()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7996: fix use-after-free bugs in mt7996_mac_dump_work()
When the mt7996 pci chip is detaching, the mt7996_crash_data is released in mt7996_coredump_unregister(). However, the work item dump_work may still be running or pending, leading to UAF bugs when the already freed crash_data is dereferenced again in mt7996_mac_dump_work().
The race condition can occur as follows:
CPU 0 (removal path) | CPU 1 (workqueue) mt7996_pci_remove() | mt7996_sys_recovery_set() mt7996_unregister_device() | mt7996_reset() mt7996_coredump_unregister() | queue_work() vfree(dev->coredump.crash_data) | mt7996_mac_dump_work() | crash_data-> // UAF
Fix this by ensuring dump_work is properly canceled before the crash_data is deallocated. Add cancel_work_sync() in mt7996_unregister_device() to synchronize with any pending or executing dump work.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53097.json" }- References
-
- https://git.kernel.org/stable/c/180182a3f23ff79430a32ca2c4c1885368ceab48
- https://git.kernel.org/stable/c/188e10f9ea3109d23c6b7643aa6ec2f5cb0faa6d
- https://git.kernel.org/stable/c/aa4a31cd89f4fde5043ac613fe0e27014a60a60b
- https://git.kernel.org/stable/c/c8f62f73bbced3a79894655bdb0b625462d956fc
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53097.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53097
- 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
-
Introduced878161d5d4a469a6ef7f3fb4fe9f676bc508ee99Fixed180182a3f23ff79430a32ca2c4c1885368ceab48Fixedaa4a31cd89f4fde5043ac613fe0e27014a60a60bFixed188e10f9ea3109d23c6b7643aa6ec2f5cb0faa6dFixedc8f62f73bbced3a79894655bdb0b625462d956fc