{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98922", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.380Z", "datePublished": "2026-10-23T12:03:02.790Z", "dateUpdated": "2026-10-23T12:05:38.754Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-23T12:05:38.754Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: emac: move setting of netops to fix crash\n\nfixes the following crash on driver initialization:\n\n|BUG: Kernel NULL pointer dereference on read at 0x00000158\n|Faulting instruction address: 0xc0566b40\n|Oops: Kernel access of bad area, sig: 11 [#1]\n|BE PAGE_SIZE=4K PowerPC 44x Platform\n|Modules linked in:\n|CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: GW 7.3.0-rc3+ #1\n|Tainted: [W]=WARN\n|Hardware name: MyBook Live APM821XX 0x12c41c83 PowerPC 44x Platform\n|NIP: c0566b40 LR: c05648f8 CTR: c04c1e9c\n|REGS: c1053a20 TRAP: 0300 Tainted: GW (7.3.0-rc3+)\n|MSR: 0002b000 <CE,EE,FP,ME> CR: 24008808 XER: 00000000\n|DEAR: 00000158 ESR: 00000000\n|GPR00: c05648f8 c1053b10 c1063600 c1030000 c5ab3000 00000000 [...]\n|GPR08: 00000002 00000000 00000000 c1053b40 84002808 00000000 [...]\n|GPR16: cfffd210 00000002 c0beafcc cfffc960 00000000 c1030644 [...]\n|GPR24: c0beafbc c1037000 00000000 0000000a 00000000 c1030000 [...]\n|NIP [c0566b40] phy_link_topo_add_phy+0x2c/0x1d0\n|LR [c05648f8] phy_attach_direct+0x1a4/0x368\n|Call Trace:\n|[c1053b10] [c0811e04] klist_put+0x54/0xb4 (unreliable)\n|[c1053b40] [c05648f8] phy_attach_direct+0x1a4/0x368\n|[c1053b70] [c0564ae8] phy_connect_direct+0x2c/0x60\n|[c1053b90] [c056c7a8] of_phy_connect+0x50/0x74\n|[c1053bc0] [c0572a88] emac_probe+0xd50/0x119c\n|[c1053c90] [c04cb770] platform_probe+0x74/0xa4\n|[c1053cb0] [c04c8f08] really_probe+0x120/0x2b0\n|[c1053cd0] [c04c9254] __driver_probe_device+0x1bc/0x1fc\n|[c1053d00] [c04c9334] driver_probe_device+0x38/0xa8\n|[c1053d30] [c04c9560] __driver_attach+0xf4/0x10c\n|[c1053d50] [c04c6af8] bus_for_each_dev+0x68/0xd0\n|[c1053d90] [c04c7c34] bus_add_driver+0xcc/0x1ec\n|[c1053dc0] [c04c9f6c] driver_register+0xcc/0x110\n|[c1053de0] [c0aa3f40] emac_init+0x1c4/0x200\n\nThis bug showed up starting with v7.3-rc1. At the NIP in\nphy_link_topo_add_phy() is a netdev_need_ops_lock() check.\nThis was added by the following\ncommit ded86da4bbb7 (\"net: ethtool: relax ethnl_req_get_phydev() locking assertion\")\n\nThe bug shows up because at the time of_phy_connect() was called, the\nnetdev_ops were *not yet* determined. My fix is to move the code that\nsets netdev_ops+commac.ops+ethtool_ops further up as emac_init_config()\nderives that by looking at the device-tree and sets the required\ndev->phy_mode accordingly.\n\nDuring review, the Sashiko bot's AI stated that the commac assignment\nbecame a dead store. Great catch! To keep the original behavior as-is,\none mentioned option \"set dev->commac.ops = &emac_commac_ops only in\nthe non-gige case?\" sounded like a great plan. So the dev->commac.ops\nassignment for the non-gige-case moves into the else block.\n\nThis patch was tested on a WD MyBook Live (RGMII). the device now works again."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/ibm/emac/core.c"], "versions": [{"version": "ded86da4bbb78cad74cecc368fee3ae3a296e2ca", "lessThan": "c664cca8f622e66bea6a94279ae2611f1d1c0c67", "status": "affected", "versionType": "git"}, {"version": "ded86da4bbb78cad74cecc368fee3ae3a296e2ca", "lessThan": "7c9f391ec89cb621d7af375ace2eb9a6248e5b9d", "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/ibm/emac/core.c"], "versions": [{"version": "7.2", "status": "affected"}, {"version": "0", "lessThan": "7.2", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.9", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "7.2", "versionEndExcluding": "7.2.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.2", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c664cca8f622e66bea6a94279ae2611f1d1c0c67"}, {"url": "https://git.kernel.org/stable/c/7c9f391ec89cb621d7af375ace2eb9a6248e5b9d"}], "title": "net: emac: move setting of netops to fix crash", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/ibm/emac/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "c664cca8f622e66bea6a94279ae2611f1d1c0c67", "status": "affected", "version": "ded86da4bbb78cad74cecc368fee3ae3a296e2ca", "versionType": "git"}, {"lessThan": "7c9f391ec89cb621d7af375ace2eb9a6248e5b9d", "status": "affected", "version": "ded86da4bbb78cad74cecc368fee3ae3a296e2ca", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/ibm/emac/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.2"}, {"lessThan": "7.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: emac: move setting of netops to fix crash\n\nfixes the following crash on driver initialization:\n\n|BUG: Kernel NULL pointer dereference on read at 0x00000158\n|Faulting instruction address: 0xc0566b40\n|Oops: Kernel access of bad area, sig: 11 [#1]\n|BE PAGE_SIZE=4K PowerPC 44x Platform\n|Modules linked in:\n|CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: GW 7.3.0-rc3+ #1\n|Tainted: [W]=WARN\n|Hardware name: MyBook Live APM821XX 0x12c41c83 PowerPC 44x Platform\n|NIP: c0566b40 LR: c05648f8 CTR: c04c1e9c\n|REGS: c1053a20 TRAP: 0300 Tainted: GW (7.3.0-rc3+)\n|MSR: 0002b000 <CE,EE,FP,ME> CR: 24008808 XER: 00000000\n|DEAR: 00000158 ESR: 00000000\n|GPR00: c05648f8 c1053b10 c1063600 c1030000 c5ab3000 00000000 [...]\n|GPR08: 00000002 00000000 00000000 c1053b40 84002808 00000000 [...]\n|GPR16: cfffd210 00000002 c0beafcc cfffc960 00000000 c1030644 [...]\n|GPR24: c0beafbc c1037000 00000000 0000000a 00000000 c1030000 [...]\n|NIP [c0566b40] phy_link_topo_add_phy+0x2c/0x1d0\n|LR [c05648f8] phy_attach_direct+0x1a4/0x368\n|Call Trace:\n|[c1053b10] [c0811e04] klist_put+0x54/0xb4 (unreliable)\n|[c1053b40] [c05648f8] phy_attach_direct+0x1a4/0x368\n|[c1053b70] [c0564ae8] phy_connect_direct+0x2c/0x60\n|[c1053b90] [c056c7a8] of_phy_connect+0x50/0x74\n|[c1053bc0] [c0572a88] emac_probe+0xd50/0x119c\n|[c1053c90] [c04cb770] platform_probe+0x74/0xa4\n|[c1053cb0] [c04c8f08] really_probe+0x120/0x2b0\n|[c1053cd0] [c04c9254] __driver_probe_device+0x1bc/0x1fc\n|[c1053d00] [c04c9334] driver_probe_device+0x38/0xa8\n|[c1053d30] [c04c9560] __driver_attach+0xf4/0x10c\n|[c1053d50] [c04c6af8] bus_for_each_dev+0x68/0xd0\n|[c1053d90] [c04c7c34] bus_add_driver+0xcc/0x1ec\n|[c1053dc0] [c04c9f6c] driver_register+0xcc/0x110\n|[c1053de0] [c0aa3f40] emac_init+0x1c4/0x200\n\nThis bug showed up starting with v7.3-rc1. At the NIP in\nphy_link_topo_add_phy() is a netdev_need_ops_lock() check.\nThis was added by the following\ncommit ded86da4bbb7 (\"net: ethtool: relax ethnl_req_get_phydev() locking assertion\")\n\nThe bug shows up because at the time of_phy_connect() was called, the\nnetdev_ops were *not yet* determined. My fix is to move the code that\nsets netdev_ops+commac.ops+ethtool_ops further up as emac_init_config()\nderives that by looking at the device-tree and sets the required\ndev->phy_mode accordingly.\n\nDuring review, the Sashiko bot's AI stated that the commac assignment\nbecame a dead store. Great catch! To keep the original behavior as-is,\none mentioned option \"set dev->commac.ops = &emac_commac_ops only in\nthe non-gige case?\" sounded like a great plan. So the dev->commac.ops\nassignment for the non-gige-case moves into the else block.\n\nThis patch was tested on a WD MyBook Live (RGMII). the device now works again."}], "id": "CVE-2026-98922", "lastModified": "2026-10-23T13:17:12.840", "metrics": {}, "published": "2026-10-23T13:17:12.840", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7c9f391ec89cb621d7af375ace2eb9a6248e5b9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c664cca8f622e66bea6a94279ae2611f1d1c0c67"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ded86da4bbb78cad74cecc368fee3ae3a296e2ca,c664cca8f622e66bea6a94279ae2611f1d1c0c67)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ded86da4bbb78cad74cecc368fee3ae3a296e2ca,7c9f391ec89cb621d7af375ace2eb9a6248e5b9d)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ded86da4bbb78cad74cecc368fee3ae3a296e2ca,c664cca8f622e66bea6a94279ae2611f1d1c0c67)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ded86da4bbb78cad74cecc368fee3ae3a296e2ca,7c9f391ec89cb621d7af375ace2eb9a6248e5b9d)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.9,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-23T16:00:15.829705+00:00", "updated": "2026-10-23T18:30:02.986817+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}