igc: fix page fault in XDP TX timestamps handling

Summary

In the Linux kernel, the following vulnerability has been resolved: igc: fix page fault in XDP TX timestamps handling If an XDP application that requested TX timestamping is shutting down while the link of the interface in use is still up the following kernel splat is reported: [ 883.803618] [ T1554] BUG: unable to handle page fault for address: ffffcfb6200fd008 ... [ 883.803650] [ T1554] Call Trace: [ 883.803652] [ T1554] <TASK> [ 883.803654] [ T1554] igc_ptp_tx_tstamp_event+0xdf/0x160 [igc] [ 883.803660] [ T1554] igc_tsync_interrupt+0x2d5/0x300 [igc] ... During shutdown of the TX ring the xsk_meta pointers are left behind, so that the IRQ handler is trying to touch them. This issue is now being fixed by cleaning up the stale xsk meta data on TX shutdown. TX timestamps on other queues remain unaffected.

Timeline

1. Apr 3, 2026, 3:15 PM UTCCVE published
2. Oct 16, 2026, 3:08 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: total

3. Oct 19, 2026, 6:35 PM UTCRecord last updated

Affected versions

• Linux Linux

  From 15fd021bc4270273d8f4b7f58fdda8a16214a377 · fixed in 5e4c90c94eb766d70e30694b7fe66862aabaf24b; From 15fd021bc4270273d8f4b7f58fdda8a16214a377 · fixed in 31521c124e6488c4a81658e35199feb75a988d86; From 15fd021bc4270273d8f4b7f58fdda8a16214a377 · fixed in b02fa17d1744d19cd3820bdbf6ec5d85547977bf; From 15fd021bc4270273d8f4b7f58fdda8a16214a377 · fixed in 45b33e805bd39f615d9353a7194b2da5281332df

• Linux Linux

  6.10

• KernelLinux

  From 6.10.0 · fixed in 6.12.78; From 6.13.0 · fixed in 6.18.20; From 6.19.0 · fixed in 6.19.10

References 4