CVE-2026-23210

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ice: Fix PTP NULL pointer dereference during VSI rebuild<br /> <br /> Fix race condition where PTP periodic work runs while VSI is being<br /> rebuilt, accessing NULL vsi-&gt;rx_rings.<br /> <br /> The sequence was:<br /> 1. ice_ptp_prepare_for_reset() cancels PTP work<br /> 2. ice_ptp_rebuild() immediately queues PTP work<br /> 3. VSI rebuild happens AFTER ice_ptp_rebuild()<br /> 4. PTP work runs and accesses NULL vsi-&gt;rx_rings<br /> <br /> Fix: Keep PTP work cancelled during rebuild, only queue it after<br /> VSI rebuild completes in ice_rebuild().<br /> <br /> Added ice_ptp_queue_work() helper function to encapsulate the logic<br /> for queuing PTP work, ensuring it&amp;#39;s only queued when PTP is supported<br /> and the state is ICE_PTP_READY.<br /> <br /> Error log:<br /> [ 121.392544] ice 0000:60:00.1: PTP reset successful<br /> [ 121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000<br /> [ 121.392712] #PF: supervisor read access in kernel mode<br /> [ 121.392720] #PF: error_code(0x0000) - not-present page<br /> [ 121.392727] PGD 0<br /> [ 121.392734] Oops: Oops: 0000 [#1] SMP NOPTI<br /> [ 121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S 6.19.0-rc6+ #4 PREEMPT(voluntary)<br /> [ 121.392761] Tainted: [S]=CPU_OUT_OF_SPEC<br /> [ 121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice]<br /> [ 121.393042] Call Trace:<br /> [ 121.393047] <br /> [ 121.393055] ice_ptp_periodic_work+0x69/0x180 [ice]<br /> [ 121.393202] kthread_worker_fn+0xa2/0x260<br /> [ 121.393216] ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice]<br /> [ 121.393359] ? __pfx_kthread_worker_fn+0x10/0x10<br /> [ 121.393371] kthread+0x10d/0x230<br /> [ 121.393382] ? __pfx_kthread+0x10/0x10<br /> [ 121.393393] ret_from_fork+0x273/0x2b0<br /> [ 121.393407] ? __pfx_kthread+0x10/0x10<br /> [ 121.393417] ret_from_fork_asm+0x1a/0x30<br /> [ 121.393432]