CVE-2026-97619

CVE CVE-2026-97619EUVD EUVD-2026-86750Published 2026-09-25T10:22:25.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: io_uring/rw: end write accounting from ->ki_complete Commit b000145e9907 moved both the fsnotify calls and the write accounting out of the kiocb completion handler and into the io_req_rw_complete() task_work. However, only the fsnotify part actually needed to move as it may sleep. Ending the write accounting is just a percpu_up_read() on the superblock writers sem. Deferring it is a problem, because it makes dropping SB_FREEZE_WRITE protection depend on the ring owner getting to running task_work. But the task may be blocked in freeze_super(), causing it to never get to that: task io-wq worker -------------------------------------------------------------- io_write() io_kiocb_start_write() (takes sb_writers, hidden from lockdep by __sb_writers_release) write_iter() -> -EIOCBQUEUED ioctl(FS_IOC_SHUTDOWN) bdev_freeze() freeze_super() percpu_down_write() <- waits for the reader above io_write() kiocb_start_write() percpu_down_read() <- queued behind the writer <bio completes> io_complete_rw() queues io_req_rw_complete() <- never runs, task is in D state End the write from io_complete_rw() instead, and leave only the fsnotify calls in task_work.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.18.53; 6.1; ea2e6286e3e89a115ae554e20ba9aec2b2e1ddff; patch: 7.2.7; b000145e9907809406d8164c3b2b8861d95aecd1 <796aa0547557e63338657ed1c487906f9fac4c73; 6.0.3 <6.1; 5.15.90 <5.16; 2a853c206e553dd9c0a55c22858fd6a446d93e15; 5.10.165 <5.11; 89a410dbd0f159ddd308f19d6eb682fc753e4771; b000145e9907809406d8164c3b2b8861d95aecd1 <055d43a1233edbd80e558889258105ce63051bcd; patch: 7.3-rc3; b000145e9907809406d8164c3b2b8861d95aecd1 <cc580cee4dfa2ec9099c30ecbd4d804cbb996432; patch: 0

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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