CVE-2026-23372nfc: rawsock: cancel tx_work before socket teardown
Updated under an hour ago ()
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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.
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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.
- 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 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 23b7869c0fd08d73c9f83a2db88a13312d6198bb builds before 9b2d23cd09e1cb56bdf0e4d5614703094159f16c; from 23b7869c0fd08d73c9f83a2db88a13312d6198bb before cdeed45ce8c92defd057f7d67ee9a69374d8fa16; 23b7869c0fd08d73c9f83a2db88a13312d6198bb builds before 3ae592ed91bb4b6b51df256b51045c13d2656049; from 23b7869c0fd08d73c9f83a2db88a13312d6198bb before 722a28b635ec281bb08a23885223526d8e7d6526; from 23b7869c0fd08d73c9f83a2db88a13312d6198bb before 78141b8832e16d80d09cbefb4258612db0777a24; from 23b7869c0fd08d73c9f83a2db88a13312d6198bb before edc988613def90c5b558e025b1b423f48007be06; from 23b7869c0fd08d73c9f83a2db88a13312d6198bb before da4515fc8263c5933ed605e396af91079806dc45; from 23b7869c0fd08d73c9f83a2db88a13312d6198bb before d793458c45df2aed498d7f74145eab7ee22d25aa | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | all versions | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.1.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.77; from 6.13 before 6.18.17; from 6.19 before 6.19.7; 3.1; and 7 more ranges | NVD |
References
- https://git.kernel.org/stable/c/9b2d23cd09e1cb56bdf0e4d5614703094159f16cpatch
- https://git.kernel.org/stable/c/cdeed45ce8c92defd057f7d67ee9a69374d8fa16patch
- https://git.kernel.org/stable/c/3ae592ed91bb4b6b51df256b51045c13d2656049patch
- https://git.kernel.org/stable/c/722a28b635ec281bb08a23885223526d8e7d6526patch
- https://git.kernel.org/stable/c/78141b8832e16d80d09cbefb4258612db0777a24patch
- https://git.kernel.org/stable/c/edc988613def90c5b558e025b1b423f48007be06patch
- https://git.kernel.org/stable/c/da4515fc8263c5933ed605e396af91079806dc45patch
- https://git.kernel.org/stable/c/d793458c45df2aed498d7f74145eab7ee22d25aapatch
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
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.