CVE-2026-98832Medium· 4.7▾ SunlitA flaw was found in the Linux kernel's block control group (blk-cgroup) subsystem. When associating block I/O requests with control groups, the kernel prematurely re-enables interrupts while internal locks are still held. A local user can …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 25.9 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 4.7
none → medium
A flaw was found in the Linux kernel's block control group (blk-cgroup) subsystem. When associating block I/O requests with control groups, the kernel prematurely re-enables interrupts while internal locks are still held. A local user can trigger this flaw during storage operations, causing an interrupt handler to attempt to acquire the locked resource. This results in a system deadlock and a Denial of Service (DoS).
kernel: blk-cgroup: save IRQ state in blkg_tryget_closest() — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.
Affected:
No fix planned:
Not affected:
Out of support scope
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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