io_uring/rw: end write accounting from ->ki_complete
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 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.
CVE-2026-97619
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-97619
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "b000145e9907809406d8164c3b2b8861d95aecd1",
"lessThan": "ed1cead97afb9c398bd7ab344a3c1ee34ab73af9",
"versionType": "git"
},
{
"status": "affected",
"version": "b000145e9907809406d8164c3b2b8861d95aecd1",
"lessThan": "696459029f3b65c070c91b729478475582f1dcdf",
"versionType": "git"
},
{
"status": "affected",
"version": "b000145e9907809406d8164c3b2b8861d95aecd1",
"lessThan": "cc580cee4dfa2ec9099c30ecbd4d804cbb996432",
"versionType": "git"
},
{
"status": "affected",
"version": "b000145e9907809406d8164c3b2b8861d95aecd1",
"lessThan": "055d43a1233edbd80e558889258105ce63051bcd",
"versionType": "git"
},
{
"status": "affected",
"version": "b000145e9907809406d8164c3b2b8861d95aecd1",
"lessThan": "796aa0547557e63338657ed1c487906f9fac4c73",
"versionType": "git"
},
{
"status": "affected",
"version": "ea2e6286e3e89a115ae554e20ba9aec2b2e1ddff",
"versionType": "git"
},
{
"status": "affected",
"version": "89a410dbd0f159ddd308f19d6eb682fc753e4771",
"versionType": "git"
},
{
"status": "affected",
"version": "2a853c206e553dd9c0a55c22858fd6a446d93e15",
"versionType": "git"
},
{
"status": "affected",
"version": "5.10.165",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.90",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.0.3",
"lessThan": "6.1",
"versionType": "semver"
}
],
"programFiles": [
"io_uring/rw.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.1",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"io_uring/rw.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97619
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #48797 · Revision 1
- Added to Heist Feed
- Publisher date