ublk: fix handling recovery & reissue in ublk_abort_queue()
In the Linux kernel, the following vulnerability has been resolved: ublk: fix handling recovery & reissue in ublk_abort_queue() Commit 8284066946e6 ("ublk: grab request reference when the request is handled by userspace") doesn't grab request reference in case of recovery reissue. Then the request can be requeued & re-dispatch & failed when canceling uring command. If it is one zc request, the request can be freed before io_uring returns the zc buffer back, then cause kernel panic: [ 126.773061] BUG: kernel NULL pointer dereference, address: 00000000000000c8 [ 126.773657] #PF: supervisor read access in kernel mode [ 126.774052] #PF: error_code(0x0000) - not-present page [ 126.774455] PGD 0 P4D 0 [ 126.774698] Oops: Oops: 0000 [#1] SMP NOPTI [ 126.775034] CPU: 13 UID: 0 PID: 1612 Comm: kworker/u64:55 Not tainted 6.14.0_blk+ #182 PREEMPT(full) [ 126.775676] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2014 [ 126.776275] Workqueue: iou_exit io_ring_exit_work [ 126.776651] RIP: 0010:ublk_io_release+0x14/0x130 [ublk_drv] Fixes it by always grabbing request reference for aborting the request.
CVE-2025-37759
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-2025-37759
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": "8284066946e6d9cc979566ce698fe24e7ca0b31e",
"lessThan": "ab41bf5a211fbec3a85e025658ed90a911ccb692",
"versionType": "git"
},
{
"status": "affected",
"version": "8284066946e6d9cc979566ce698fe24e7ca0b31e",
"lessThan": "caa5c8a2358604f38bf0a4afaa5eacda13763067",
"versionType": "git"
},
{
"status": "affected",
"version": "8284066946e6d9cc979566ce698fe24e7ca0b31e",
"lessThan": "5d34a30efac9c9c93e150130caa940c0df6053c1",
"versionType": "git"
},
{
"status": "affected",
"version": "8284066946e6d9cc979566ce698fe24e7ca0b31e",
"lessThan": "0a21d259ca4d6310fdfcc0284ebbc000e66cbf70",
"versionType": "git"
},
{
"status": "affected",
"version": "8284066946e6d9cc979566ce698fe24e7ca0b31e",
"lessThan": "6ee6bd5d4fce502a5b5a2ea805e9ff16e6aa890f",
"versionType": "git"
}
],
"programFiles": [
"drivers/block/ublk_drv.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.24",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.12",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14.3",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/block/ublk_drv.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-37759
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #45969 · Revision 1
- Added to Heist Feed
- Publisher date