Signal is active with 1 mentions in latest observed window
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NVD description
In the Linux kernel, the following vulnerability has been resolved: tcp: Fix potential UAF in reqsk_timer_handler(). When TCP socket migration fails at inet_ehash_insert() in reqsk_timer_handler(), we jump to the no_ownership: label and free the new reqsk immediately with __reqsk_free(). Thus, we must stop the new reqsk's timer before jumping to the label, but the timer might be missed since the cited commit, resulting in UAF. As we are in the original reqsk's timer context, we can safely call timer_delete_sync() for the new reqsk. Let's pass false to __inet_csk_reqsk_queue_drop() to stop the new reqsk's timer.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
🆕 New CVE Linux kernel: use-after-free in TCP request socket timer handler (CVE-2026-99270) An attacker may be able to corrupt kernel memory or crash the system through a failed TCP socket migration. Patch → 4.2 https://cve.now/CVE-2026-99270?utm_source=x&utm_medium=social&utm_campaign=cvedotnow&utm_content=critical