CVE-2026-23210 (GCVE-0-2026-23210)
Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-02-14 16:27
VLAI?
Title
ice: Fix PTP NULL pointer dereference during VSI rebuild
Summary
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>
Severity ?
No CVSS data available.
Assigner
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/intel/ice/ice_main.c",
"drivers/net/ethernet/intel/ice/ice_ptp.c",
"drivers/net/ethernet/intel/ice/ice_ptp.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7565d4df66b6619b50dc36618d8b8f1787d77e19",
"status": "affected",
"version": "803bef817807d2d36c930dada20c96fffae0dd19",
"versionType": "git"
},
{
"lessThan": "fc6f36eaaedcf4b81af6fe1a568f018ffd530660",
"status": "affected",
"version": "803bef817807d2d36c930dada20c96fffae0dd19",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/intel/ice/ice_main.c",
"drivers/net/ethernet/intel/ice/ice_ptp.c",
"drivers/net/ethernet/intel/ice/ice_ptp.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.9"
},
{
"lessThan": "6.9",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.10",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.10",
"versionStartIncluding": "6.9",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19",
"versionStartIncluding": "6.9",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Fix PTP NULL pointer dereference during VSI rebuild\n\nFix race condition where PTP periodic work runs while VSI is being\nrebuilt, accessing NULL vsi-\u003erx_rings.\n\nThe sequence was:\n1. ice_ptp_prepare_for_reset() cancels PTP work\n2. ice_ptp_rebuild() immediately queues PTP work\n3. VSI rebuild happens AFTER ice_ptp_rebuild()\n4. PTP work runs and accesses NULL vsi-\u003erx_rings\n\nFix: Keep PTP work cancelled during rebuild, only queue it after\nVSI rebuild completes in ice_rebuild().\n\nAdded ice_ptp_queue_work() helper function to encapsulate the logic\nfor queuing PTP work, ensuring it\u0027s only queued when PTP is supported\nand the state is ICE_PTP_READY.\n\nError log:\n[ 121.392544] ice 0000:60:00.1: PTP reset successful\n[ 121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[ 121.392712] #PF: supervisor read access in kernel mode\n[ 121.392720] #PF: error_code(0x0000) - not-present page\n[ 121.392727] PGD 0\n[ 121.392734] Oops: Oops: 0000 [#1] SMP NOPTI\n[ 121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S 6.19.0-rc6+ #4 PREEMPT(voluntary)\n[ 121.392761] Tainted: [S]=CPU_OUT_OF_SPEC\n[ 121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice]\n[ 121.393042] Call Trace:\n[ 121.393047] \u003cTASK\u003e\n[ 121.393055] ice_ptp_periodic_work+0x69/0x180 [ice]\n[ 121.393202] kthread_worker_fn+0xa2/0x260\n[ 121.393216] ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice]\n[ 121.393359] ? __pfx_kthread_worker_fn+0x10/0x10\n[ 121.393371] kthread+0x10d/0x230\n[ 121.393382] ? __pfx_kthread+0x10/0x10\n[ 121.393393] ret_from_fork+0x273/0x2b0\n[ 121.393407] ? __pfx_kthread+0x10/0x10\n[ 121.393417] ret_from_fork_asm+0x1a/0x30\n[ 121.393432] \u003c/TASK\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-02-14T16:27:31.892Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7565d4df66b6619b50dc36618d8b8f1787d77e19"
},
{
"url": "https://git.kernel.org/stable/c/fc6f36eaaedcf4b81af6fe1a568f018ffd530660"
}
],
"title": "ice: Fix PTP NULL pointer dereference during VSI rebuild",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-23210",
"datePublished": "2026-02-14T16:27:31.892Z",
"dateReserved": "2026-01-13T15:37:45.986Z",
"dateUpdated": "2026-02-14T16:27:31.892Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-23210\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-02-14T17:15:58.910\",\"lastModified\":\"2026-02-14T17:15:58.910\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nice: Fix PTP NULL pointer dereference during VSI rebuild\\n\\nFix race condition where PTP periodic work runs while VSI is being\\nrebuilt, accessing NULL vsi-\u003erx_rings.\\n\\nThe sequence was:\\n1. ice_ptp_prepare_for_reset() cancels PTP work\\n2. ice_ptp_rebuild() immediately queues PTP work\\n3. VSI rebuild happens AFTER ice_ptp_rebuild()\\n4. PTP work runs and accesses NULL vsi-\u003erx_rings\\n\\nFix: Keep PTP work cancelled during rebuild, only queue it after\\nVSI rebuild completes in ice_rebuild().\\n\\nAdded ice_ptp_queue_work() helper function to encapsulate the logic\\nfor queuing PTP work, ensuring it\u0027s only queued when PTP is supported\\nand the state is ICE_PTP_READY.\\n\\nError log:\\n[ 121.392544] ice 0000:60:00.1: PTP reset successful\\n[ 121.392692] BUG: kernel NULL pointer dereference, address: 0000000000000000\\n[ 121.392712] #PF: supervisor read access in kernel mode\\n[ 121.392720] #PF: error_code(0x0000) - not-present page\\n[ 121.392727] PGD 0\\n[ 121.392734] Oops: Oops: 0000 [#1] SMP NOPTI\\n[ 121.392746] CPU: 8 UID: 0 PID: 1005 Comm: ice-ptp-0000:60 Tainted: G S 6.19.0-rc6+ #4 PREEMPT(voluntary)\\n[ 121.392761] Tainted: [S]=CPU_OUT_OF_SPEC\\n[ 121.392773] RIP: 0010:ice_ptp_update_cached_phctime+0xbf/0x150 [ice]\\n[ 121.393042] Call Trace:\\n[ 121.393047] \u003cTASK\u003e\\n[ 121.393055] ice_ptp_periodic_work+0x69/0x180 [ice]\\n[ 121.393202] kthread_worker_fn+0xa2/0x260\\n[ 121.393216] ? __pfx_ice_ptp_periodic_work+0x10/0x10 [ice]\\n[ 121.393359] ? __pfx_kthread_worker_fn+0x10/0x10\\n[ 121.393371] kthread+0x10d/0x230\\n[ 121.393382] ? __pfx_kthread+0x10/0x10\\n[ 121.393393] ret_from_fork+0x273/0x2b0\\n[ 121.393407] ? __pfx_kthread+0x10/0x10\\n[ 121.393417] ret_from_fork_asm+0x1a/0x30\\n[ 121.393432] \u003c/TASK\u003e\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7565d4df66b6619b50dc36618d8b8f1787d77e19\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fc6f36eaaedcf4b81af6fe1a568f018ffd530660\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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