CVE-2026-23239
In the Linux kernel, the following vulnerability has been resolved: espintcp: Fix race condition in espintcp_close() This issue was discovered during a code audit. After cancel_work_sync() is called from espintcp_close(), espintcp_tx_work() can still be scheduled from paths such as the Delayed ACK handler or ksoftirqd. As a result, the espintcp_tx_work() worker may dereference a freed espintcp ctx or sk. The following is a simple race scenario: cpu0 cpu1 espintcp_close() cancel_work_sync(&ctx->work); espintcp_write_space() schedule_work(&ctx->work); To prevent this race condition, cancel_work_sync() is replaced with disable_work_sync().
- Score
- CVSS 3.1 7.8 High
- Status
- Modified - 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- Published
- 2026-03-10
- Last modified
- 2026-10-19
- Weaknesses
- CWE-362
Affected products
References
- https://git.kernel.org/stable/c/f7ad8b1d0e421c524604d5076b73232093490d5c
- https://git.kernel.org/stable/c/664e9df53226b4505a0894817ecad2c610ab11d8
- https://git.kernel.org/stable/c/022ff7f347588de6e17879a1da6019647b21321b
- https://git.kernel.org/stable/c/e1512c1db9e8794d8d130addd2615ec27231d994
