CVE-2026-23239
High · 7.8CVSS
7.8
EPSS
0.1%
Published
Mar 10, 2026
CISA due date
—
The record
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().
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Leap 16.0 | dtb-aarch64 | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-64kb | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-azure | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-default | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-default-base | 0 | 6.12.0-160000.27.1.160000.2.8 |
| openSUSE:Leap 16.0 | kernel-docs | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-kvmsmall | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-obs-build | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-obs-qa | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-rt | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-source | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-syms | 0 | 6.12.0-160000.28.1 |
| openSUSE:Leap 16.0 | kernel-zfcpdump | 0 | 6.12.0-160000.28.1 |
| openSUSE:Tumbleweed | kernel-source | 0 | 6.19.8-1.1 |
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