CVE-2026-23210— ice: Fix PTP NULL pointer dereference during VSI rebuild
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I. Basic Information for CVE-2026-23210
Vulnerability Information
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Vulnerability Title
ice: Fix PTP NULL pointer dereference during VSI rebuild
Source: NVD (National Vulnerability Database)
Vulnerability Description
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. ice_ptp_prepare_for_reset() cancels PTP work 2. ice_ptp_rebuild() immediately queues PTP work 3. VSI rebuild happens AFTER ice_ptp_rebuild() 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 ice_ptp_queue_work() helper function to encapsulate the logic for queuing PTP work, ensuring it's only queued when PTP is supported and the state is ICE_PTP_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: error_code(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]=CPU_OUT_OF_SPEC [ 121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice] [ 121.393042] Call Trace: [ 121.393047] <TASK> [ 121.393055] ice_ptp_periodic_work+0x69/0x180 [ice] [ 121.393202] kthread_worker_fn+0xa2/0x260 [ 121.393216] ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice] [ 121.393359] ? __pfx_kthread_worker_fn+0x10/0x10 [ 121.393371] kthread+0x10d/0x230 [ 121.393382] ? __pfx_kthread+0x10/0x10 [ 121.393393] ret_from_fork+0x273/0x2b0 [ 121.393407] ? __pfx_kthread+0x10/0x10 [ 121.393417] ret_from_fork_asm+0x1a/0x30 [ 121.393432] </TASK>
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ice驱动中PTP工作与VSI重建存在竞争条件，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-23210
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Same Patch Batch · Linux · 2026-02-14 · 108 CVEs total
| CVE-2026-23193 | 8.8 HIGH | scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() |
| CVE-2026-23172 | 8.4 HIGH | net: wwan: t7xx: fix potential skb->frags overflow in RX path |
| CVE-2026-23178 | 7.8 HIGH | HID: i2c-hid: fix potential buffer overflow in i2c_hid_get_report() |
| CVE-2026-23184 | 7.8 HIGH | binder: fix UAF in binder_netlink_report() |
| CVE-2026-23185 | 7.8 HIGH | wifi: iwlwifi: mld: cancel mlo_scan_start_wk |
| CVE-2026-23171 | 7.8 HIGH | bonding: fix use-after-free due to enslave fail after slave array update |
| CVE-2026-23169 | 7.8 HIGH | mptcp: fix race in mptcp_pm_nl_flush_addrs_doit() |
| CVE-2026-23191 | 7.8 HIGH | ALSA: aloop: Fix racy access at PCM trigger |
| CVE-2026-23198 | 7.8 HIGH | KVM: Don't clobber irqfd routing type when deassigning irqfd |
| CVE-2026-23209 | 7.8 HIGH | macvlan: fix error recovery in macvlan_common_newlink() |
| CVE-2026-23192 | 7.8 HIGH | linkwatch: use __dev_put() in callers to prevent UAF |
| CVE-2026-23136 | 7.5 HIGH | libceph: reset sparse-read state in osd_fault() |
| CVE-2026-23139 | 7.5 HIGH | netfilter: nf_conncount: update last_gc only when GC has been performed |
| CVE-2026-23148 | 7.5 HIGH | nvmet: fix race in nvmet_bio_done() leading to NULL pointer dereference |
| CVE-2026-23161 | 7.3 HIGH | mm/shmem, swap: fix race of truncate and swap entry split |
| CVE-2026-23204 | 7.1 HIGH | net/sched: cls_u32: use skb_header_pointer_careful() |
| CVE-2026-23195 | 7.0 HIGH | cgroup/dmem: avoid pool UAF |
| CVE-2026-23175 | 7.0 HIGH | net: cpsw: Execute ndo_set_rx_mode callback in a work queue |
| CVE-2026-23180 | 7.0 HIGH | dpaa2-switch: add bounds check for if_id in IRQ handler |
| CVE-2026-23140 | bpf, test_run: Subtract size of xdp_frame from allowed metadata size |
Showing top 20 of 108 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2026-23210
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