CVE-2026-23210
- Source
- https://cve.org/CVERecord?id=CVE-2026-23210
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23210.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-23210
- Downstream
- Published
- 2026-02-14T16:27:31.892Z
- Modified
- 2026-02-14T20:07:25.362489Z
- Summary
- ice: Fix PTP NULL pointer dereference during VSI rebuild
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ice: Fix PTP NULL pointer dereference during VSI rebuild
Fix race condition where PTP periodic work runs while VSI is being rebuilt, accessing NULL vsi->rx_rings.
The sequence was: 1. iceptpprepareforreset() cancels PTP work 2. iceptprebuild() immediately queues PTP work 3. VSI rebuild happens AFTER iceptprebuild() 4. PTP work runs and accesses NULL vsi->rx_rings
Fix: Keep PTP work cancelled during rebuild, only queue it after VSI rebuild completes in ice_rebuild().
Added iceptpqueuework() helper function to encapsulate the logic for queuing PTP work, ensuring it's only queued when PTP is supported and the state is ICEPTP_READY.
Error log: [ 121.392544] ice 0000:60:00.1: PTP reset successful [ 121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 121.392712] #PF: supervisor read access in kernel mode [ 121.392720] #PF: errorcode(0x0000) - not-present page [ 121.392727] PGD 0 [ 121.392734] Oops: Oops: 0000 [#1] SMP NOPTI [ 121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S 6.19.0-rc6+ #4 PREEMPT(voluntary) [ 121.392761] Tainted: [S]=CPUOUTOFSPEC [ 121.392773] RIP: 0010:iceptpupdatecachedphctime+0xbf/0x150 [ice] [ 121.393042] Call Trace: [ 121.393047] <TASK> [ 121.393055] iceptpperiodicwork+0x69/0x180 [ice] [ 121.393202] kthreadworker_fn+0xa2/0x260 [ 121.393216] ? __pfxiceptpperiodicwork+0x10/0x10 [ice] [ 121.393359] ? __pfxkthreadworker_fn+0x10/0x10 [ 121.393371] kthread+0x10d/0x230 [ 121.393382] ? __pfxkthread+0x10/0x10 [ 121.393393] retfrom_fork+0x273/0x2b0 [ 121.393407] ? __pfxkthread+0x10/0x10 [ 121.393417] retfromforkasm+0x1a/0x30 [ 121.393432] </TASK>
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23210.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/7565d4df66b6619b50dc36618d8b8f1787d77e19
- https://git.kernel.org/stable/c/fc6f36eaaedcf4b81af6fe1a568f018ffd530660
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23210.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-23210
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced803bef817807d2d36c930dada20c96fffae0dd19Fixed7565d4df66b6619b50dc36618d8b8f1787d77e19Fixedfc6f36eaaedcf4b81af6fe1a568f018ffd530660