CVE-2026-23445
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
03/04/2026
Última modificación:
03/04/2026
Descripción
*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
igc: fix page fault in XDP TX timestamps handling<br />
<br />
If an XDP application that requested TX timestamping is shutting down<br />
while the link of the interface in use is still up the following kernel<br />
splat is reported:<br />
<br />
[ 883.803618] [ T1554] BUG: unable to handle page fault for address: ffffcfb6200fd008<br />
...<br />
[ 883.803650] [ T1554] Call Trace:<br />
[ 883.803652] [ T1554] <br />
[ 883.803654] [ T1554] igc_ptp_tx_tstamp_event+0xdf/0x160 [igc]<br />
[ 883.803660] [ T1554] igc_tsync_interrupt+0x2d5/0x300 [igc]<br />
...<br />
<br />
During shutdown of the TX ring the xsk_meta pointers are left behind, so<br />
that the IRQ handler is trying to touch them.<br />
<br />
This issue is now being fixed by cleaning up the stale xsk meta data on<br />
TX shutdown. TX timestamps on other queues remain unaffected.



