CVE-2026-53098
What it is
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work() When the mt7915 pci chip is detaching, the mt7915_crash_data is released in mt7915_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 mt7915_mac_dump_work(). The race condition can occur as follows: CPU 0 (removal path) | CPU 1 (workqueue) mt7915_pci_remove() | mt7915_sys_recovery_set() mt7915_unregister_device() | mt7915_reset() mt7915_coredump_unregister() | queue_work() vfree(dev->coredump.crash_data) | mt7915_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 mt7915_unregister_device() to synchronize with any pending or executing dump work.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Modified
Affected
- Linux Kernel < 6.6.141
- Linux Kernel < 6.12.91
- Linux Kernel < 6.18.33
- Linux Kernel < 7.0.10
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-53098.md and follow it. Check whether this project is affected by CVE-2026-53098. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/1146d0946b5358fad24812bd39d68f31cd40cc34
- https://git.kernel.org/stable/c/21ce6d867867645fff0ef657be18f61d9f39dcd8
- https://git.kernel.org/stable/c/6b7cbb13c838cf2a5f2e7be0e96fe15250087939
- https://git.kernel.org/stable/c/6d5202409467d621b6d1dfd7fc7dadb997fe66d2
- https://git.kernel.org/stable/c/e6856af8a22a8e2cd18241a465ed00c2301b3a5e
References
- https://git.kernel.org/stable/c/1146d0946b5358fad24812bd39d68f31cd40cc34
- https://git.kernel.org/stable/c/21ce6d867867645fff0ef657be18f61d9f39dcd8
- https://git.kernel.org/stable/c/55159f1fa30bef03e01af469823c1de103a4a884
- https://git.kernel.org/stable/c/6b7cbb13c838cf2a5f2e7be0e96fe15250087939
- https://git.kernel.org/stable/c/6d5202409467d621b6d1dfd7fc7dadb997fe66d2
- https://git.kernel.org/stable/c/e6856af8a22a8e2cd18241a465ed00c2301b3a5e