CVE-2026-23372
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
Linux kernel vulnerabilities
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Mitigation details
Source: Debian Security Tracker · View original ↗ · DFSG
CVE-2026-23372 NameCVE-2026-23372 DescriptionIn the Linux kernel, the following vulnerability has been resolved: nfc: rawsock: cancel tx_work before socket teardown In rawsock_release(), cancel any pending tx_work and purge the write queue before orphaning the socket. rawsock_tx_work runs on the system workqueue and calls nfc_data_exchange which dereferences the NCI device. Without…
CVE-2026-23372
| Name | CVE-2026-23372 |
| Description | In the Linux kernel, the following vulnerability has been resolved: nfc: rawsock: cancel tx_work before socket teardown In rawsock_release(), cancel any pending tx_work and purge the write queue before orphaning the socket. rawsock_tx_work runs on the system workqueue and calls nfc_data_exchange which dereferences the NCI device. Without synchronization, tx_work can race with socket and device teardown when a process is killed (e.g. by SIGKILL), leading to use-after-free or leaked references. Set SEND_SHUTDOWN first so that if tx_work is already running it will see the flag and skip transmitting, then use cancel_work_sync to wait for any in-progress execution to finish, and finally purge any remaining queued skbs. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4561-1, DLA-4606-1, DSA-6238-1, DSA-6243-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | vulnerable |
| bullseye (security) | 5.10.257-1 | fixed | |
| bookworm | 6.1.170-3 | fixed | |
| bookworm (security) | 6.1.174-1 | fixed | |
| trixie | 6.12.86-1 | fixed | |
| trixie (security) | 6.12.94-1 | fixed | |
| forky, sid | 7.0.13-1 | fixed | |
| linux-6.1 (PTS) | bullseye (security) | 6.1.174-1~deb11u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | bullseye | 5.10.257-1 | DLA-4606-1 | ||
| linux | source | bookworm | 6.1.170-1 | DSA-6243-1 | ||
| linux | source | trixie | 6.12.85-1 | DSA-6238-1 | ||
| linux | source | (unstable) | 6.19.8-1 | |||
| linux-6.1 | source | bullseye | 6.1.170-1~deb11u1 | DLA-4561-1 |
Notes
https://git.kernel.org/linus/d793458c45df2aed498d7f74145eab7ee22d25aa (7.0-rc3)
Apply commands
Notes
https://git.kernel.org/linus/d793458c45df2aed498d7f74145eab7ee22d25aa (7.0-rc3)OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.85-1 |
| sid | Fixed | 6.19.8-1 |
| forky | Fixed | 6.19.8-1 |
| bullseye | Fixed | 6.1.170-1~deb11u1 |
| bookworm | Fixed | 6.1.170-1 |
Ubuntu Fixed 3 releases
| Version | Status | Fixed in |
|---|---|---|
| noble | Fixed | 6.8.0-1064.72+fips1 |
| jammy | Fixed | 5.15.0-1075.79 |
| focal | Fixed | 5.15.0-1064.66~20.04.1 |
References
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.