CVE-2025-37823net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too
Updated under an hour ago ()
Does this affect you?
It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too Similarly to the previous patch, we need to safe guard hfsc_dequeue() too. But for this one, we don't have a reliable reproducer.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 68f256305ceb426d545a0dc31f83c2ab1d211a1e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2f46d14919c39528c6e540ebc43f90055993eedc; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before da7936518996d290e2fcfcaf6cd7e15bfd87804a; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 11bccb054c1462fb069219f8e98e97a5a730758e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 76c4c22c2437d3d3880efc0f62eca06ef078d290; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before c6f035044104c6ff656f4565cd22938dc892528c; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before c6936266f8bf98a53f28ef9a820e6a501e946d09; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6ccbda44e2cc3d26fd22af54c650d6d5d801addf | CNA record |
linux linux_kernel linux:linux_kernel | from 2.6.13 before 5.4.293; from 5.5 before 5.10.237; from 5.11 before 5.15.181; from 5.16 before 6.1.136; from 6.2 before 6.6.89; from 6.7 before 6.12.26; from 6.13 before 6.14.5; 2.6.12; and 7 more ranges | NVD |
debian debian_linux debian:debian_linux | 11.0 | NVD |
References
- https://git.kernel.org/stable/c/68f256305ceb426d545a0dc31f83c2ab1d211a1epatch
- https://git.kernel.org/stable/c/2f46d14919c39528c6e540ebc43f90055993eedcpatch
- https://git.kernel.org/stable/c/da7936518996d290e2fcfcaf6cd7e15bfd87804apatch
- https://git.kernel.org/stable/c/11bccb054c1462fb069219f8e98e97a5a730758epatch
- https://git.kernel.org/stable/c/76c4c22c2437d3d3880efc0f62eca06ef078d290patch
- https://git.kernel.org/stable/c/c6f035044104c6ff656f4565cd22938dc892528cpatch
- https://git.kernel.org/stable/c/c6936266f8bf98a53f28ef9a820e6a501e946d09patch
- https://git.kernel.org/stable/c/6ccbda44e2cc3d26fd22af54c650d6d5d801addfpatch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.htmlmailing-list, third-party-advisory
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlmailing-list, third-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.