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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.

PUBLISHED Reserved 2026-01-13 | Published 2026-03-25 | Updated 2026-05-11 | Assigner Linux




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Product status

Default status
unaffected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before 9b2d23cd09e1cb56bdf0e4d5614703094159f16c
affected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before cdeed45ce8c92defd057f7d67ee9a69374d8fa16
affected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before 3ae592ed91bb4b6b51df256b51045c13d2656049
affected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before 722a28b635ec281bb08a23885223526d8e7d6526
affected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before 78141b8832e16d80d09cbefb4258612db0777a24
affected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before edc988613def90c5b558e025b1b423f48007be06
affected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before da4515fc8263c5933ed605e396af91079806dc45
affected

23b7869c0fd08d73c9f83a2db88a13312d6198bb (git) before d793458c45df2aed498d7f74145eab7ee22d25aa
affected

Default status
affected

3.1
affected

Any version before 3.1
unaffected

5.10.253 (semver)
unaffected

5.15.203 (semver)
unaffected

6.1.167 (semver)
unaffected

6.6.130 (semver)
unaffected

6.12.77 (semver)
unaffected

6.18.17 (semver)
unaffected

6.19.7 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/9b2d23cd09e1cb56bdf0e4d5614703094159f16c

git.kernel.org/...c/cdeed45ce8c92defd057f7d67ee9a69374d8fa16

git.kernel.org/...c/3ae592ed91bb4b6b51df256b51045c13d2656049

git.kernel.org/...c/722a28b635ec281bb08a23885223526d8e7d6526

git.kernel.org/...c/78141b8832e16d80d09cbefb4258612db0777a24

git.kernel.org/...c/edc988613def90c5b558e025b1b423f48007be06

git.kernel.org/...c/da4515fc8263c5933ed605e396af91079806dc45

git.kernel.org/...c/d793458c45df2aed498d7f74145eab7ee22d25aa

cve.org (CVE-2026-23372)

nvd.nist.gov (CVE-2026-23372)

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