{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23210", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.986Z", "datePublished": "2026-02-14T16:27:31.892Z", "dateUpdated": "2026-05-11T22:02:27.163Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:02:27.163Z"}, "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->rx_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->rx_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's 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] <TASK>\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] </TASK>"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "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"], "versions": [{"version": "803bef817807d2d36c930dada20c96fffae0dd19", "lessThan": "ba0c7fff6616025a7d3a9e887e7ce16b06dc34b9", "status": "affected", "versionType": "git"}, {"version": "803bef817807d2d36c930dada20c96fffae0dd19", "lessThan": "7565d4df66b6619b50dc36618d8b8f1787d77e19", "status": "affected", "versionType": "git"}, {"version": "803bef817807d2d36c930dada20c96fffae0dd19", "lessThan": "fc6f36eaaedcf4b81af6fe1a568f018ffd530660", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "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"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.80", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.10", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.12.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ba0c7fff6616025a7d3a9e887e7ce16b06dc34b9"}, {"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"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "241EA55E-C309-4617-A483-BA8E77746F53", "versionEndExcluding": "6.18.10", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*", "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*", "matchCriteriaId": "EB5B7DFC-C36B-45D8-922C-877569FDDF43", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "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->rx_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->rx_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's 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] <TASK>\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] </TASK>"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nice: Soluciona la desreferencia de puntero NULL de PTP durante la reconstrucci\u00f3n de VSI\n\nSoluciona la condici\u00f3n de carrera donde el trabajo peri\u00f3dico de PTP se ejecuta mientras VSI est\u00e1 siendo reconstruido, accediendo a vsi-&gt;rx_rings NULL.\n\nLa secuencia fue:\n1. ice_ptp_prepare_for_reset() cancela el trabajo de PTP\n2. ice_ptp_rebuild() encola inmediatamente el trabajo de PTP\n3. La reconstrucci\u00f3n de VSI ocurre DESPU\u00c9S de ice_ptp_rebuild()\n4. El trabajo de PTP se ejecuta y accede a vsi-&gt;rx_rings NULL\n\nCorrecci\u00f3n: Mantener el trabajo de PTP cancelado durante la reconstrucci\u00f3n, solo encolarlo despu\u00e9s de que la reconstrucci\u00f3n de VSI se complete en ice_rebuild().\n\nSe a\u00f1adi\u00f3 la funci\u00f3n auxiliar ice_ptp_queue_work() para encapsular la l\u00f3gica de encolamiento del trabajo de PTP, asegurando que solo se encole cuando PTP es compatible y el estado es ICE_PTP_READY.\n\nRegistro de error:\n[ 121.392544] ice 0000:60:00.1: Reinicio de PTP exitoso\n[ 121.392692] BUG: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000000\n[ 121.392712] #PF: acceso de lectura de supervisor en modo kernel\n[ 121.392720] #PF: error_code(0x0000) - p\u00e1gina no presente\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] Traza de Llamada:\n[ 121.393047] \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] "}], "id": "CVE-2026-23210", "lastModified": "2026-04-02T12:16:19.477", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-02-14T17:15:58.910", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7565d4df66b6619b50dc36618d8b8f1787d77e19"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba0c7fff6616025a7d3a9e887e7ce16b06dc34b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fc6f36eaaedcf4b81af6fe1a568f018ffd530660"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ice: Fix PTP NULL pointer dereference during VSI rebuild", "id": "2439895", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439895"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nice: Fix PTP NULL pointer dereference during VSI rebuild\nFix race condition where PTP periodic work runs while VSI is being\nrebuilt, accessing NULL vsi->rx_rings.\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->rx_rings\nFix: Keep PTP work cancelled during rebuild, only queue it after\nVSI rebuild completes in ice_rebuild().\nAdded ice_ptp_queue_work() helper function to encapsulate the logic\nfor queuing PTP work, ensuring it's only queued when PTP is supported\nand the state is ICE_PTP_READY.\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] <TASK>\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] </TASK>"], "name": "CVE-2026-23210", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-02-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23210\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23210\nhttps://lore.kernel.org/linux-cve-announce/2026021439-CVE-2026-23210-7cac@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[803bef817807d2d36c930dada20c96fffae0dd19,7565d4df66b6619b50dc36618d8b8f1787d77e19)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[803bef817807d2d36c930dada20c96fffae0dd19,fc6f36eaaedcf4b81af6fe1a568f018ffd530660)"}}], "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.10,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.19,*]"}}], "product": "linux_kernel", "vendor": "linux"}], "analysis": {"en": {"generated_at": "2026-04-16T00:41:54.250281+00:00", "value": {"mitigation_remediation": ["Apply a Linux kernel update that includes the ice driver patch correcting the PTP queue logic.", "Reboot the system to load the updated kernel and verify that the ice driver no longer produces null pointer dereference logs in kernel messages.", "If a kernel update is not immediately available, consider temporarily disabling PTP support for the ice device via driver configuration to avoid the race condition."], "summary": {"action": "Immediate Update", "impact": "Kernel Crash (Denial of Service)"}, "threat_synthesis": {"affected_systems": "The flaw is present in Linux kernel builds that include the ice driver before version\u00a06.19 rc9. CPE data shows that all\u00a06.19 release candidates up through rc8 are affected, as well as other kernel releases containing the same code path. Any system running a kernel with this driver and enabled PTP support is vulnerable until the patch is applied.", "description_and_impact": "A race condition in the Linux ice driver allows the PTP periodic work to access a null vsi->rx_rings pointer after a VSI rebuild, causing a null pointer dereference and kernel panic. The kernel crash results in a loss of system availability and can affect all processes running on the host. The vulnerability is limited to the ice driver but can be triggered when the PTP feature is enabled and a reset occurs during a rebuild sequence.", "risk_and_exploitability": "The CVSS score of\u00a04.7 indicates low severity, and the EPSS score of\u00a0<1% suggests a very low likelihood of exploitation in the wild. The vulnerability is not listed in the CISA KEV catalog, further reducing immediate concern. Based on the description, it is inferred that an attacker would likely need local privileged control to trigger the reset and rebuild sequence, or might be able to provoke the sequence indirectly via PTP commands if exposed. The impact is primarily a denial of service rather than data compromise. Organizations using affected kernel versions should treat the risk as low but mitigate promptly to avoid unexpected system crashes."}}}}, "created": "2026-02-16T09:43:21.017665+00:00", "updated": "2026-04-16T00:45:15.973183+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}