CVE-2026-23445 in Kernel
要約 (英語)
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]
[ 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.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
責任者
Linux
予約する
2026年01月13日
公開
2026年04月03日
ステータス
確認済み
エントリ
VulDB provides additional information and datapoints for this CVE:
| 識別子 | 脆弱性 | CWE | 悪用可 | 対策 | CVE |
|---|---|---|---|---|---|
| 355153 | Linux Kernel IRQ igc_ptp_tx_tstamp_event メモリ破損 | 119 | 未定義 | 公式な修正 | CVE-2026-23445 |