{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-48850", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-07-16T11:38:08.912Z", "datePublished": "2024-07-16T12:25:17.824Z", "dateUpdated": "2024-09-11T17:34:08.652Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-07-16T12:25:17.824Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet-sysfs: add check for netdevice being present to speed_show\n\nWhen bringing down the netdevice or system shutdown, a panic can be\ntriggered while accessing the sysfs path because the device is already\nremoved.\n\n [ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called\n [ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called\n ...\n [ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null)\n [ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280\n\n crash> bt\n ...\n PID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: \"amsd\"\n ...\n #9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778\n [exception RIP: dma_pool_alloc+0x1ab]\n RIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046\n RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000\n RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d874090\n RBP: ffff89240e1a39c0 R8: 000000000001f080 R9: ffff8905ffc03c00\n R10: ffffffffc04680d4 R11: ffffffff8edde9fd R12: 00000000000080d0\n R13: ffff89243d874090 R14: ffff89243d874080 R15: 0000000000000000\n ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018\n #10 [ffff89240e1a39c8] mlx5_alloc_cmd_msg at ffffffffc04680f3 [mlx5_core]\n #11 [ffff89240e1a3a18] cmd_exec at ffffffffc046ad62 [mlx5_core]\n #12 [ffff89240e1a3ab8] mlx5_cmd_exec at ffffffffc046b4fb [mlx5_core]\n #13 [ffff89240e1a3ae8] mlx5_core_access_reg at ffffffffc0475434 [mlx5_core]\n #14 [ffff89240e1a3b40] mlx5e_get_fec_caps at ffffffffc04a7348 [mlx5_core]\n #15 [ffff89240e1a3bb0] get_fec_supported_advertised at ffffffffc04992bf [mlx5_core]\n #16 [ffff89240e1a3c08] mlx5e_get_link_ksettings at ffffffffc049ab36 [mlx5_core]\n #17 [ffff89240e1a3ce8] __ethtool_get_link_ksettings at ffffffff8f25db46\n #18 [ffff89240e1a3d48] speed_show at ffffffff8f277208\n #19 [ffff89240e1a3dd8] dev_attr_show at ffffffff8f0b70e3\n #20 [ffff89240e1a3df8] sysfs_kf_seq_show at ffffffff8eedbedf\n #21 [ffff89240e1a3e18] kernfs_seq_show at ffffffff8eeda596\n #22 [ffff89240e1a3e28] seq_read at ffffffff8ee76d10\n #23 [ffff89240e1a3e98] kernfs_fop_read at ffffffff8eedaef5\n #24 [ffff89240e1a3ed8] vfs_read at ffffffff8ee4e3ff\n #25 [ffff89240e1a3f08] sys_read at ffffffff8ee4f27f\n #26 [ffff89240e1a3f50] system_call_fastpath at ffffffff8f395f92\n\n crash> net_device.state ffff89443b0c0000\n state = 0x5 (__LINK_STATE_START| __LINK_STATE_NOCARRIER)\n\nTo prevent this scenario, we also make sure that the netdevice is present."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/net-sysfs.c"], "versions": [{"version": "1da177e4c3f4", "lessThan": "a7b9ab04c593", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "081369ad088a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "75fc8363227a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "8879b5313e9f", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "d15c9f6e3335", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "8d5e69d8fbf3", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "3a79f380b3e1", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "4224cfd7fb65", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/core/net-sysfs.c"], "versions": [{"version": "4.9.307", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "custom"}, {"version": "4.14.272", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom"}, {"version": "4.19.235", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.4.185", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.106", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.29", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.16.15", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.17", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/a7b9ab04c5932dee7ec95e0abc58b0df350c0dd2"}, {"url": "https://git.kernel.org/stable/c/081369ad088a76429984483b8a5f7e967a125aad"}, {"url": "https://git.kernel.org/stable/c/75fc8363227a999e8f3d17e2eb28dce5600dcd3f"}, {"url": "https://git.kernel.org/stable/c/8879b5313e9fa5e0c6d6812a0d25d83aed0110e2"}, {"url": "https://git.kernel.org/stable/c/d15c9f6e3335002fea1c33bc8f71a705fa96976c"}, {"url": "https://git.kernel.org/stable/c/8d5e69d8fbf3a35ab4fbe56b8f092802b43f3ef6"}, {"url": "https://git.kernel.org/stable/c/3a79f380b3e10edf6caa9aac90163a5d7a282204"}, {"url": "https://git.kernel.org/stable/c/4224cfd7fb6523f7a9d1c8bb91bb5df1e38eb624"}], "title": "net-sysfs: add check for netdevice being present to speed_show", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"providerMetadata": {"orgId": 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"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:25:01.618Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-48850", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T16:56:25.657269Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:20.947Z"}}], "cna": {"title": "net-sysfs: add check for netdevice being present to speed_show", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1da177e4c3f4", "lessThan": "a7b9ab04c593", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "081369ad088a", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "75fc8363227a", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "8879b5313e9f", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "d15c9f6e3335", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "8d5e69d8fbf3", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "3a79f380b3e1", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "4224cfd7fb65", "versionType": "git"}], "programFiles": ["net/core/net-sysfs.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "unaffected", "version": "4.9.307", "versionType": "custom", "lessThanOrEqual": "4.9.*"}, {"status": "unaffected", "version": "4.14.272", "versionType": "custom", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.235", "versionType": "custom", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.185", "versionType": "custom", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.106", "versionType": "custom", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.29", "versionType": "custom", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16.15", "versionType": "custom", "lessThanOrEqual": "5.16.*"}, {"status": "unaffected", "version": "5.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/core/net-sysfs.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/a7b9ab04c5932dee7ec95e0abc58b0df350c0dd2"}, {"url": "https://git.kernel.org/stable/c/081369ad088a76429984483b8a5f7e967a125aad"}, {"url": "https://git.kernel.org/stable/c/75fc8363227a999e8f3d17e2eb28dce5600dcd3f"}, {"url": "https://git.kernel.org/stable/c/8879b5313e9fa5e0c6d6812a0d25d83aed0110e2"}, {"url": "https://git.kernel.org/stable/c/d15c9f6e3335002fea1c33bc8f71a705fa96976c"}, {"url": "https://git.kernel.org/stable/c/8d5e69d8fbf3a35ab4fbe56b8f092802b43f3ef6"}, {"url": "https://git.kernel.org/stable/c/3a79f380b3e10edf6caa9aac90163a5d7a282204"}, {"url": "https://git.kernel.org/stable/c/4224cfd7fb6523f7a9d1c8bb91bb5df1e38eb624"}], "x_generator": {"engine": "bippy-c9c4e1df01b2"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet-sysfs: add check for netdevice being present to speed_show\n\nWhen bringing down the netdevice or system shutdown, a panic can be\ntriggered while accessing the sysfs path because the device is already\nremoved.\n\n [ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called\n [ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called\n ...\n [ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null)\n [ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280\n\n crash> bt\n ...\n PID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: \"amsd\"\n ...\n #9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778\n [exception RIP: dma_pool_alloc+0x1ab]\n RIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046\n RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000\n RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d874090\n RBP: ffff89240e1a39c0 R8: 000000000001f080 R9: ffff8905ffc03c00\n R10: ffffffffc04680d4 R11: ffffffff8edde9fd R12: 00000000000080d0\n R13: ffff89243d874090 R14: ffff89243d874080 R15: 0000000000000000\n ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018\n #10 [ffff89240e1a39c8] mlx5_alloc_cmd_msg at ffffffffc04680f3 [mlx5_core]\n #11 [ffff89240e1a3a18] cmd_exec at ffffffffc046ad62 [mlx5_core]\n #12 [ffff89240e1a3ab8] mlx5_cmd_exec at ffffffffc046b4fb [mlx5_core]\n #13 [ffff89240e1a3ae8] mlx5_core_access_reg at ffffffffc0475434 [mlx5_core]\n #14 [ffff89240e1a3b40] mlx5e_get_fec_caps at ffffffffc04a7348 [mlx5_core]\n #15 [ffff89240e1a3bb0] get_fec_supported_advertised at ffffffffc04992bf [mlx5_core]\n #16 [ffff89240e1a3c08] mlx5e_get_link_ksettings at ffffffffc049ab36 [mlx5_core]\n #17 [ffff89240e1a3ce8] __ethtool_get_link_ksettings at ffffffff8f25db46\n #18 [ffff89240e1a3d48] speed_show at ffffffff8f277208\n #19 [ffff89240e1a3dd8] dev_attr_show at ffffffff8f0b70e3\n #20 [ffff89240e1a3df8] sysfs_kf_seq_show at ffffffff8eedbedf\n #21 [ffff89240e1a3e18] kernfs_seq_show at ffffffff8eeda596\n #22 [ffff89240e1a3e28] seq_read at ffffffff8ee76d10\n #23 [ffff89240e1a3e98] kernfs_fop_read at ffffffff8eedaef5\n #24 [ffff89240e1a3ed8] vfs_read at ffffffff8ee4e3ff\n #25 [ffff89240e1a3f08] sys_read at ffffffff8ee4f27f\n #26 [ffff89240e1a3f50] system_call_fastpath at ffffffff8f395f92\n\n crash> net_device.state ffff89443b0c0000\n state = 0x5 (__LINK_STATE_START| __LINK_STATE_NOCARRIER)\n\nTo prevent this scenario, we also make sure that the netdevice is present."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-07-16T12:25:17.824Z"}}}, "cveMetadata": {"cveId": "CVE-2022-48850", "state": "PUBLISHED", "dateUpdated": "2024-09-11T17:34:08.652Z", "dateReserved": "2024-07-16T11:38:08.912Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-07-16T12:25:17.824Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "22B29938-3445-45F5-868D-74D6063E6D64", "versionEndExcluding": "4.9.307", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7F0FA2C5-4E50-48A6-9D72-7C133B60EF05", "versionEndExcluding": "4.14.272", "versionStartIncluding": "4.10", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F8671D74-E8CD-4E41-A93F-3E3E88125D16", "versionEndExcluding": "4.19.235", "versionStartIncluding": "4.15", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B374BFBF-C879-4A72-921F-C850CF7DFB99", "versionEndExcluding": "5.4.185", "versionStartIncluding": "4.20", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6A4F38AC-99A2-48DF-B132-C9F785B309B8", "versionEndExcluding": "5.10.106", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "15DC6588-B28F-4637-9A1E-3753B34A40CF", "versionEndExcluding": "5.15.29", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "83FDEDF2-0E19-4879-91FD-171E66D1B335", "versionEndExcluding": "5.16.15", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet-sysfs: add check for netdevice being present to speed_show\n\nWhen bringing down the netdevice or system shutdown, a panic can be\ntriggered while accessing the sysfs path because the device is already\nremoved.\n\n [ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called\n [ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called\n ...\n [ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null)\n [ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280\n\n crash> bt\n ...\n PID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: \"amsd\"\n ...\n #9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778\n [exception RIP: dma_pool_alloc+0x1ab]\n RIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046\n RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000\n RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d874090\n RBP: ffff89240e1a39c0 R8: 000000000001f080 R9: ffff8905ffc03c00\n R10: ffffffffc04680d4 R11: ffffffff8edde9fd R12: 00000000000080d0\n R13: ffff89243d874090 R14: ffff89243d874080 R15: 0000000000000000\n ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018\n #10 [ffff89240e1a39c8] mlx5_alloc_cmd_msg at ffffffffc04680f3 [mlx5_core]\n #11 [ffff89240e1a3a18] cmd_exec at ffffffffc046ad62 [mlx5_core]\n #12 [ffff89240e1a3ab8] mlx5_cmd_exec at ffffffffc046b4fb [mlx5_core]\n #13 [ffff89240e1a3ae8] mlx5_core_access_reg at ffffffffc0475434 [mlx5_core]\n #14 [ffff89240e1a3b40] mlx5e_get_fec_caps at ffffffffc04a7348 [mlx5_core]\n #15 [ffff89240e1a3bb0] get_fec_supported_advertised at ffffffffc04992bf [mlx5_core]\n #16 [ffff89240e1a3c08] mlx5e_get_link_ksettings at ffffffffc049ab36 [mlx5_core]\n #17 [ffff89240e1a3ce8] __ethtool_get_link_ksettings at ffffffff8f25db46\n #18 [ffff89240e1a3d48] speed_show at ffffffff8f277208\n #19 [ffff89240e1a3dd8] dev_attr_show at ffffffff8f0b70e3\n #20 [ffff89240e1a3df8] sysfs_kf_seq_show at ffffffff8eedbedf\n #21 [ffff89240e1a3e18] kernfs_seq_show at ffffffff8eeda596\n #22 [ffff89240e1a3e28] seq_read at ffffffff8ee76d10\n #23 [ffff89240e1a3e98] kernfs_fop_read at ffffffff8eedaef5\n #24 [ffff89240e1a3ed8] vfs_read at ffffffff8ee4e3ff\n #25 [ffff89240e1a3f08] sys_read at ffffffff8ee4f27f\n #26 [ffff89240e1a3f50] system_call_fastpath at ffffffff8f395f92\n\n crash> net_device.state ffff89443b0c0000\n state = 0x5 (__LINK_STATE_START| __LINK_STATE_NOCARRIER)\n\nTo prevent this scenario, we also make sure that the netdevice is present."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net-sysfs: agregue verificaci\u00f3n para que netdevice est\u00e9 presente en speed_show Al desactivar el netdevice o apagar el sistema, se puede desencadenar un p\u00e1nico al acceder a la ruta sysfs porque el dispositivo ya est\u00e1 eliminado. [ 755.549084] mlx5_core 0000:12:00.1: Se llam\u00f3 al apagado [ 756.404455] mlx5_core 0000:12:00.0: Se llam\u00f3 al apagado... [ 757.937260] ERROR: no se puede manejar la desreferencia del puntero NULL del kernel en (nulo) [ 758.031397] IP: [] dma_pool_alloc+0x1ab/0x280 crash&gt; bt... PID: 12649 TAREA: ffff8924108f2100 CPU: 1 COMANDO: \"amsd\"... #9 [ffff89240e1a38b0] page_fault en ffffffff8f38c778 [excepci\u00f3n RIP: pool_alloc+0x1ab] RIP : ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046 RAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000 RDX: 00000000000000000 RSI: 0000000000000246 RDI: ffff89243d874090 RBP: ffff89240e1a39c0 R8: 000000000001f080 R9: ffff8905ffc03c00 R10: ffffffffc04680d4 R11: d R12: 00000000000080d0 R13: ffff89243d874090 R14: ffff89243d874080 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #10 [ffff89240e1a39c8] mlx5_alloc_cmd_msg en ffffffffc04680f3 [mlx5_core] #11 [ffff89240e1a3a18] d_exec en ffffffffc046ad62 [mlx5_core] #12 [ffff89240e1a3ab8] mlx5_cmd_exec en ffffffffc046b4fb [mlx5_core] #13 [ffff89240e1a3ae8] mlx5_core_access_reg en ffffffffc0475434 [mlx5_core] #14 [ffff89240e1a3b40] mlx5e_get_fec_caps en ffffffffc04a7348 [mlx5_core] #15 [ffff89240e1a3bb0] get_fec_supported_advertised en ffffffffc04992bf [mlx5_core] #16 [ffff89240e1a3c08] mlx5e_get_link_ksettings en ffffffffc049ab36 [mlx5_core] #17 [ffff89240e1a3ce8] __ethtool_get_link_ksettings en ffffffff8f25db46 #18 [ ffff89240e1a3d48] speed_show en ffffffff8f277208 #19 [ffff89240e1a3dd8] dev_attr_show en ffffffff8f0b70e3 #20 [ffff89240e1a3df8] sysfs_kf_seq_show en ffffffff8eedbedf #21 40e1a3e18] kernfs_seq_show en ffffffff8eeda596 #22 [ffff89240e1a3e28] seq_read en ffffffff8ee76d10 #23 [ffff89240e1a3e98] kernfs_fop_read en ffffffff8eedaef5 #24 8] vfs_read en ffffffff8ee4e3ff #25 [ffff89240e1a3f08] sys_read en ffffffff8ee4f27f #26 [ffff89240e1a3f50] system_call_fastpath en ffffffff8f395f92 crash&gt; net_device.state ffff89443b0c0000 estado = 0x5 LINK_STATE_START| __LINK_STATE_NOCARRIER) Para evitar este escenario, tambi\u00e9n nos aseguramos de que el netdevice est\u00e9 presente."}], "id": "CVE-2022-48850", "lastModified": "2024-07-23T17:06:58.507", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-07-16T13:15:12.170", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/081369ad088a76429984483b8a5f7e967a125aad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3a79f380b3e10edf6caa9aac90163a5d7a282204"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4224cfd7fb6523f7a9d1c8bb91bb5df1e38eb624"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/75fc8363227a999e8f3d17e2eb28dce5600dcd3f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8879b5313e9fa5e0c6d6812a0d25d83aed0110e2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8d5e69d8fbf3a35ab4fbe56b8f092802b43f3ef6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a7b9ab04c5932dee7ec95e0abc58b0df350c0dd2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d15c9f6e3335002fea1c33bc8f71a705fa96976c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net-sysfs: add check for netdevice being present to speed_show", "id": "2298191", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2298191"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet-sysfs: add check for netdevice being present to speed_show\nWhen bringing down the netdevice or system shutdown, a panic can be\ntriggered while accessing the sysfs path because the device is already\nremoved.\n[ 755.549084] mlx5_core 0000:12:00.1: Shutdown was called\n[ 756.404455] mlx5_core 0000:12:00.0: Shutdown was called\n...\n[ 757.937260] BUG: unable to handle kernel NULL pointer dereference at (null)\n[ 758.031397] IP: [<ffffffff8ee11acb>] dma_pool_alloc+0x1ab/0x280\ncrash> bt\n...\nPID: 12649 TASK: ffff8924108f2100 CPU: 1 COMMAND: \"amsd\"\n...\n#9 [ffff89240e1a38b0] page_fault at ffffffff8f38c778\n[exception RIP: dma_pool_alloc+0x1ab]\nRIP: ffffffff8ee11acb RSP: ffff89240e1a3968 RFLAGS: 00010046\nRAX: 0000000000000246 RBX: ffff89243d874100 RCX: 0000000000001000\nRDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff89243d874090\nRBP: ffff89240e1a39c0 R8: 000000000001f080 R9: ffff8905ffc03c00\nR10: ffffffffc04680d4 R11: ffffffff8edde9fd R12: 00000000000080d0\nR13: ffff89243d874090 R14: ffff89243d874080 R15: 0000000000000000\nORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018\n#10 [ffff89240e1a39c8] mlx5_alloc_cmd_msg at ffffffffc04680f3 [mlx5_core]\n#11 [ffff89240e1a3a18] cmd_exec at ffffffffc046ad62 [mlx5_core]\n#12 [ffff89240e1a3ab8] mlx5_cmd_exec at ffffffffc046b4fb [mlx5_core]\n#13 [ffff89240e1a3ae8] mlx5_core_access_reg at ffffffffc0475434 [mlx5_core]\n#14 [ffff89240e1a3b40] mlx5e_get_fec_caps at ffffffffc04a7348 [mlx5_core]\n#15 [ffff89240e1a3bb0] get_fec_supported_advertised at ffffffffc04992bf [mlx5_core]\n#16 [ffff89240e1a3c08] mlx5e_get_link_ksettings at ffffffffc049ab36 [mlx5_core]\n#17 [ffff89240e1a3ce8] __ethtool_get_link_ksettings at ffffffff8f25db46\n#18 [ffff89240e1a3d48] speed_show at ffffffff8f277208\n#19 [ffff89240e1a3dd8] dev_attr_show at ffffffff8f0b70e3\n#20 [ffff89240e1a3df8] sysfs_kf_seq_show at ffffffff8eedbedf\n#21 [ffff89240e1a3e18] kernfs_seq_show at ffffffff8eeda596\n#22 [ffff89240e1a3e28] seq_read at ffffffff8ee76d10\n#23 [ffff89240e1a3e98] kernfs_fop_read at ffffffff8eedaef5\n#24 [ffff89240e1a3ed8] vfs_read at ffffffff8ee4e3ff\n#25 [ffff89240e1a3f08] sys_read at ffffffff8ee4f27f\n#26 [ffff89240e1a3f50] system_call_fastpath at ffffffff8f395f92\ncrash> net_device.state ffff89443b0c0000\nstate = 0x5 (__LINK_STATE_START| __LINK_STATE_NOCARRIER)\nTo prevent this scenario, we also make sure that the netdevice is present.", "A flaw was found in the Linux kernel. When bringing down the net device on system shutdown, a panic can be triggered while accessing the sysfs path because the device is already removed."], "name": "CVE-2022-48850", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48850\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48850\nhttps://lore.kernel.org/linux-cve-announce/2024071625-CVE-2022-48850-247b@gregkh/T"], "threat_severity": "Moderate", "upstream_fix": "kernel 4.9.307, kernel 4.14.272, kernel 4.19.235, kernel 5.4.185, kernel 5.10.106, kernel 5.15.29, kernel 5.16.15, kernel 5.17"}