{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47197", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-03-25T09:12:14.116Z", "datePublished": "2024-04-10T18:56:33.260Z", "dateUpdated": "2025-05-04T12:41:15.139Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T12:41:15.139Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()\n\nPrior to this patch in case mlx5_core_destroy_cq() failed it proceeds\nto rest of destroy operations. mlx5_core_destroy_cq() could be called again\nby user and cause additional call of mlx5_debug_cq_remove().\ncq->dbg was not nullify in previous call and cause the crash.\n\nFix it by nullify cq->dbg pointer after removal.\n\nAlso proceed to destroy operations only if FW return 0\nfor MLX5_CMD_OP_DESTROY_CQ command.\n\ngeneral protection fault, probably for non-canonical address 0x2000300004058: 0000 [#1] SMP PTI\nCPU: 5 PID: 1228 Comm: python Not tainted 5.15.0-rc5_for_upstream_min_debug_2021_10_14_11_06 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nRIP: 0010:lockref_get+0x1/0x60\nCode: 5d e9 53 ff ff ff 48 8d 7f 70 e8 0a 2e 48 00 c7 85 d0 00 00 00 02\n00 00 00 c6 45 70 00 fb 5d c3 c3 cc cc cc cc cc cc cc cc 53 <48> 8b 17\n48 89 fb 85 d2 75 3d 48 89 d0 bf 64 00 00 00 48 89 c1 48\nRSP: 0018:ffff888137dd7a38 EFLAGS: 00010206\nRAX: 0000000000000000 RBX: ffff888107d5f458 RCX: 00000000fffffffe\nRDX: 000000000002c2b0 RSI: ffffffff8155e2e0 RDI: 0002000300004058\nRBP: ffff888137dd7a88 R08: 0002000300004058 R09: ffff8881144a9f88\nR10: 0000000000000000 R11: 0000000000000000 R12: ffff8881141d4000\nR13: ffff888137dd7c68 R14: ffff888137dd7d58 R15: ffff888137dd7cc0\nFS: 00007f4644f2a4c0(0000) GS:ffff8887a2d40000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000055b4500f4380 CR3: 0000000114f7a003 CR4: 0000000000170ea0\nCall Trace:\n simple_recursive_removal+0x33/0x2e0\n ? debugfs_remove+0x60/0x60\n debugfs_remove+0x40/0x60\n mlx5_debug_cq_remove+0x32/0x70 [mlx5_core]\n mlx5_core_destroy_cq+0x41/0x1d0 [mlx5_core]\n devx_obj_cleanup+0x151/0x330 [mlx5_ib]\n ? __pollwait+0xd0/0xd0\n ? xas_load+0x5/0x70\n ? xa_load+0x62/0xa0\n destroy_hw_idr_uobject+0x20/0x80 [ib_uverbs]\n uverbs_destroy_uobject+0x3b/0x360 [ib_uverbs]\n uobj_destroy+0x54/0xa0 [ib_uverbs]\n ib_uverbs_cmd_verbs+0xaf2/0x1160 [ib_uverbs]\n ? uverbs_finalize_object+0xd0/0xd0 [ib_uverbs]\n ib_uverbs_ioctl+0xc4/0x1b0 [ib_uverbs]\n __x64_sys_ioctl+0x3e4/0x8e0"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/cq.c", "drivers/net/ethernet/mellanox/mlx5/core/debugfs.c"], "versions": [{"version": "4f7bddf8c5c01cac74373443b13a68e1c6723a94", "lessThan": "471c492890557bd58f73314bb4ad85d5a8fd5026", "status": "affected", "versionType": "git"}, {"version": "94b960b9deffc02fc0747afc01f72cc62ab099e3", "lessThan": "2ae38157080616a13a9fe3f0b4b6ec0070aa408a", "status": "affected", "versionType": "git"}, {"version": "94b960b9deffc02fc0747afc01f72cc62ab099e3", "lessThan": "76ded29d3fcda4928da8849ffc446ea46871c1c2", "status": "affected", "versionType": "git"}, {"version": "ed8aafea4fec9c654e63445236e0b505e27ed3a7", "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/mellanox/mlx5/core/cq.c", "drivers/net/ethernet/mellanox/mlx5/core/debugfs.c"], "versions": [{"version": "5.15", "status": "affected"}, {"version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.82", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.5", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.16", "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": "5.10.75", "versionEndExcluding": "5.10.82"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.15.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14.14"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/471c492890557bd58f73314bb4ad85d5a8fd5026"}, {"url": "https://git.kernel.org/stable/c/2ae38157080616a13a9fe3f0b4b6ec0070aa408a"}, {"url": "https://git.kernel.org/stable/c/76ded29d3fcda4928da8849ffc446ea46871c1c2"}], "title": "net/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-21T16:04:48.403112Z", "id": "CVE-2021-47197", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-21T16:04:55.421Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:07.338Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/471c492890557bd58f73314bb4ad85d5a8fd5026", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2ae38157080616a13a9fe3f0b4b6ec0070aa408a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/76ded29d3fcda4928da8849ffc446ea46871c1c2", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/471c492890557bd58f73314bb4ad85d5a8fd5026", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/2ae38157080616a13a9fe3f0b4b6ec0070aa408a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/76ded29d3fcda4928da8849ffc446ea46871c1c2", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:07.338Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47197", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-21T16:04:48.403112Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-21T16:04:52.668Z"}}], "cna": {"title": "net/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4f7bddf8c5c01cac74373443b13a68e1c6723a94", "lessThan": "471c492890557bd58f73314bb4ad85d5a8fd5026", "versionType": "git"}, {"status": "affected", "version": "94b960b9deffc02fc0747afc01f72cc62ab099e3", "lessThan": "2ae38157080616a13a9fe3f0b4b6ec0070aa408a", "versionType": "git"}, {"status": "affected", "version": "94b960b9deffc02fc0747afc01f72cc62ab099e3", "lessThan": "76ded29d3fcda4928da8849ffc446ea46871c1c2", "versionType": "git"}, {"status": "affected", "version": "ed8aafea4fec9c654e63445236e0b505e27ed3a7", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/cq.c", "drivers/net/ethernet/mellanox/mlx5/core/debugfs.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"status": "unaffected", "version": "0", "lessThan": "5.15", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.82", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.5", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "5.16", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/cq.c", "drivers/net/ethernet/mellanox/mlx5/core/debugfs.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/471c492890557bd58f73314bb4ad85d5a8fd5026"}, {"url": "https://git.kernel.org/stable/c/2ae38157080616a13a9fe3f0b4b6ec0070aa408a"}, {"url": "https://git.kernel.org/stable/c/76ded29d3fcda4928da8849ffc446ea46871c1c2"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()\n\nPrior to this patch in case mlx5_core_destroy_cq() failed it proceeds\nto rest of destroy operations. mlx5_core_destroy_cq() could be called again\nby user and cause additional call of mlx5_debug_cq_remove().\ncq->dbg was not nullify in previous call and cause the crash.\n\nFix it by nullify cq->dbg pointer after removal.\n\nAlso proceed to destroy operations only if FW return 0\nfor MLX5_CMD_OP_DESTROY_CQ command.\n\ngeneral protection fault, probably for non-canonical address 0x2000300004058: 0000 [#1] SMP PTI\nCPU: 5 PID: 1228 Comm: python Not tainted 5.15.0-rc5_for_upstream_min_debug_2021_10_14_11_06 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nRIP: 0010:lockref_get+0x1/0x60\nCode: 5d e9 53 ff ff ff 48 8d 7f 70 e8 0a 2e 48 00 c7 85 d0 00 00 00 02\n00 00 00 c6 45 70 00 fb 5d c3 c3 cc cc cc cc cc cc cc cc 53 <48> 8b 17\n48 89 fb 85 d2 75 3d 48 89 d0 bf 64 00 00 00 48 89 c1 48\nRSP: 0018:ffff888137dd7a38 EFLAGS: 00010206\nRAX: 0000000000000000 RBX: ffff888107d5f458 RCX: 00000000fffffffe\nRDX: 000000000002c2b0 RSI: ffffffff8155e2e0 RDI: 0002000300004058\nRBP: ffff888137dd7a88 R08: 0002000300004058 R09: ffff8881144a9f88\nR10: 0000000000000000 R11: 0000000000000000 R12: ffff8881141d4000\nR13: ffff888137dd7c68 R14: ffff888137dd7d58 R15: ffff888137dd7cc0\nFS: 00007f4644f2a4c0(0000) GS:ffff8887a2d40000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000055b4500f4380 CR3: 0000000114f7a003 CR4: 0000000000170ea0\nCall Trace:\n simple_recursive_removal+0x33/0x2e0\n ? debugfs_remove+0x60/0x60\n debugfs_remove+0x40/0x60\n mlx5_debug_cq_remove+0x32/0x70 [mlx5_core]\n mlx5_core_destroy_cq+0x41/0x1d0 [mlx5_core]\n devx_obj_cleanup+0x151/0x330 [mlx5_ib]\n ? __pollwait+0xd0/0xd0\n ? xas_load+0x5/0x70\n ? xa_load+0x62/0xa0\n destroy_hw_idr_uobject+0x20/0x80 [ib_uverbs]\n uverbs_destroy_uobject+0x3b/0x360 [ib_uverbs]\n uobj_destroy+0x54/0xa0 [ib_uverbs]\n ib_uverbs_cmd_verbs+0xaf2/0x1160 [ib_uverbs]\n ? uverbs_finalize_object+0xd0/0xd0 [ib_uverbs]\n ib_uverbs_ioctl+0xc4/0x1b0 [ib_uverbs]\n __x64_sys_ioctl+0x3e4/0x8e0"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.82", "versionStartIncluding": "5.10.75"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.5", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.16", "versionStartIncluding": "5.15"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.14.14"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T12:41:15.139Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47197", "state": "PUBLISHED", "dateUpdated": "2025-05-04T12:41:15.139Z", "dateReserved": "2024-03-25T09:12:14.116Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-04-10T18:56:33.260Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0EA39C97-5A1D-43F9-A83A-B0BDD31139B8", "versionEndExcluding": "5.10.82", "versionStartIncluding": "5.10.75", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "2128A085-4C0C-4C1E-9E9C-0DD868E2170F", "versionEndExcluding": "5.15.5", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*", "matchCriteriaId": "357AA433-37E8-4323-BFB2-3038D6E4B414", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()\n\nPrior to this patch in case mlx5_core_destroy_cq() failed it proceeds\nto rest of destroy operations. mlx5_core_destroy_cq() could be called again\nby user and cause additional call of mlx5_debug_cq_remove().\ncq->dbg was not nullify in previous call and cause the crash.\n\nFix it by nullify cq->dbg pointer after removal.\n\nAlso proceed to destroy operations only if FW return 0\nfor MLX5_CMD_OP_DESTROY_CQ command.\n\ngeneral protection fault, probably for non-canonical address 0x2000300004058: 0000 [#1] SMP PTI\nCPU: 5 PID: 1228 Comm: python Not tainted 5.15.0-rc5_for_upstream_min_debug_2021_10_14_11_06 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nRIP: 0010:lockref_get+0x1/0x60\nCode: 5d e9 53 ff ff ff 48 8d 7f 70 e8 0a 2e 48 00 c7 85 d0 00 00 00 02\n00 00 00 c6 45 70 00 fb 5d c3 c3 cc cc cc cc cc cc cc cc 53 <48> 8b 17\n48 89 fb 85 d2 75 3d 48 89 d0 bf 64 00 00 00 48 89 c1 48\nRSP: 0018:ffff888137dd7a38 EFLAGS: 00010206\nRAX: 0000000000000000 RBX: ffff888107d5f458 RCX: 00000000fffffffe\nRDX: 000000000002c2b0 RSI: ffffffff8155e2e0 RDI: 0002000300004058\nRBP: ffff888137dd7a88 R08: 0002000300004058 R09: ffff8881144a9f88\nR10: 0000000000000000 R11: 0000000000000000 R12: ffff8881141d4000\nR13: ffff888137dd7c68 R14: ffff888137dd7d58 R15: ffff888137dd7cc0\nFS: 00007f4644f2a4c0(0000) GS:ffff8887a2d40000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000055b4500f4380 CR3: 0000000114f7a003 CR4: 0000000000170ea0\nCall Trace:\n simple_recursive_removal+0x33/0x2e0\n ? debugfs_remove+0x60/0x60\n debugfs_remove+0x40/0x60\n mlx5_debug_cq_remove+0x32/0x70 [mlx5_core]\n mlx5_core_destroy_cq+0x41/0x1d0 [mlx5_core]\n devx_obj_cleanup+0x151/0x330 [mlx5_ib]\n ? __pollwait+0xd0/0xd0\n ? xas_load+0x5/0x70\n ? xa_load+0x62/0xa0\n destroy_hw_idr_uobject+0x20/0x80 [ib_uverbs]\n uverbs_destroy_uobject+0x3b/0x360 [ib_uverbs]\n uobj_destroy+0x54/0xa0 [ib_uverbs]\n ib_uverbs_cmd_verbs+0xaf2/0x1160 [ib_uverbs]\n ? uverbs_finalize_object+0xd0/0xd0 [ib_uverbs]\n ib_uverbs_ioctl+0xc4/0x1b0 [ib_uverbs]\n __x64_sys_ioctl+0x3e4/0x8e0"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net/mlx5e: anular el puntero cq-&gt;dbg en mlx5_debug_cq_remove() Antes de este parche, en caso de que mlx5_core_destroy_cq() fallara, se proced\u00eda al resto de las operaciones de destrucci\u00f3n. El usuario pod\u00eda volver a llamar a mlx5_core_destroy_cq() y provocar una llamada adicional de mlx5_debug_cq_remove(). cq-&gt;dbg no se anul\u00f3 en la llamada anterior y provoc\u00f3 el bloqueo. Arr\u00e9glelo anulando el puntero cq-&gt;dbg despu\u00e9s de la eliminaci\u00f3n. Tambi\u00e9n proceda a destruir las operaciones solo si el firmware devuelve 0 para el comando MLX5_CMD_OP_DESTROY_CQ. Fallo de protecci\u00f3n general, probablemente por direcci\u00f3n no can\u00f3nica 0x2000300004058:0000 [#1] SMP PTI CPU: 5 PID: 1228 Comm: python No contaminado 5.15.0-rc5_for_upstream_min_debug_2021_10_14_11_06 #1 Nombre del hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:lockref_get+0x1/0x60 C\u00f3digo: 5d e9 53 ff ff ff 48 8d 7f 70 e8 0a 2e 48 00 c7 85 d0 00 00 00 02 00 00 00 c6 45 70 00 fb 5d c3 c3 cc cc cc cc cc cc cc cc 53 &lt;48&gt; 8b 17 48 89 fb 85 d2 75 3d 48 89 d0 bf 64 00 00 00 48 89 c1 48 RSP: 0018:ffff888137dd7a38 EFLAGS: 00010206 RAX: 000000000000000 RBX: ffff888107d5f458 RCX: 00000000fffffffe RDX: 00000000002c2b0 RSI: ffffffff8155e2e0 RDI: 0002000300004058 RBP: ffff888137dd7a88 R08: 0002000300004058 R09: ffff8881144a9f88 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881141d4000 R13: ffff888137dd7c68 R14: ffff888137dd7d58 R15: ffff888137dd7cc0 FS: 00007f4644f2a4c0(0000) GS:ffff8887a2d40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b4500f4380 CR3: 0000000114f7a003 CR4: 0000000000170ea0 Seguimiento de llamadas: simple_recursive_removal+0x33/0x2e0 ? debugfs_remove+0x60/0x60 debugfs_remove+0x40/0x60 mlx5_debug_cq_remove+0x32/0x70 [mlx5_core] mlx5_core_destroy_cq+0x41/0x1d0 [mlx5_core] devx_obj_cleanup+0x151/0x330 [mlx5_ib] ? __pollwait+0xd0/0xd0 ? xas_load+0x5/0x70 ? uverbs_destruir_uobject+0x3b/0x360 [ib_uverbs] uobj_destruir+0x54/0xa0 [ib_uverbs] ib_uverbs_cmd_verbs+0xaf2/0x1160 [ib_uverbs] ? uverbs_finalizar_objeto+0xd0/0xd0 [ib_uverbs] ib_uverbs_ioctl+0xc4/0x1b0 [ib_uverbs] __x64_sys_ioctl+0x3e4/0x8e0"}], "id": "CVE-2021-47197", "lastModified": "2025-03-21T12:03:49.537", "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": "2024-04-10T19:15:47.940", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2ae38157080616a13a9fe3f0b4b6ec0070aa408a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/471c492890557bd58f73314bb4ad85d5a8fd5026"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/76ded29d3fcda4928da8849ffc446ea46871c1c2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2ae38157080616a13a9fe3f0b4b6ec0070aa408a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/471c492890557bd58f73314bb4ad85d5a8fd5026"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/76ded29d3fcda4928da8849ffc446ea46871c1c2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net/mlx5e: nullify cq-&gt;dbg pointer in mlx5_debug_cq_remove()", "id": "2274612", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2274612"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-158", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet/mlx5e: nullify cq->dbg pointer in mlx5_debug_cq_remove()\nPrior to this patch in case mlx5_core_destroy_cq() failed it proceeds\nto rest of destroy operations. mlx5_core_destroy_cq() could be called again\nby user and cause additional call of mlx5_debug_cq_remove().\ncq->dbg was not nullify in previous call and cause the crash.\nFix it by nullify cq->dbg pointer after removal.\nAlso proceed to destroy operations only if FW return 0\nfor MLX5_CMD_OP_DESTROY_CQ command.\ngeneral protection fault, probably for non-canonical address 0x2000300004058: 0000 [#1] SMP PTI\nCPU: 5 PID: 1228 Comm: python Not tainted 5.15.0-rc5_for_upstream_min_debug_2021_10_14_11_06 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\nRIP: 0010:lockref_get+0x1/0x60\nCode: 5d e9 53 ff ff ff 48 8d 7f 70 e8 0a 2e 48 00 c7 85 d0 00 00 00 02\n00 00 00 c6 45 70 00 fb 5d c3 c3 cc cc cc cc cc cc cc cc 53 <48> 8b 17\n48 89 fb 85 d2 75 3d 48 89 d0 bf 64 00 00 00 48 89 c1 48\nRSP: 0018:ffff888137dd7a38 EFLAGS: 00010206\nRAX: 0000000000000000 RBX: ffff888107d5f458 RCX: 00000000fffffffe\nRDX: 000000000002c2b0 RSI: ffffffff8155e2e0 RDI: 0002000300004058\nRBP: ffff888137dd7a88 R08: 0002000300004058 R09: ffff8881144a9f88\nR10: 0000000000000000 R11: 0000000000000000 R12: ffff8881141d4000\nR13: ffff888137dd7c68 R14: ffff888137dd7d58 R15: ffff888137dd7cc0\nFS: 00007f4644f2a4c0(0000) GS:ffff8887a2d40000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 000055b4500f4380 CR3: 0000000114f7a003 CR4: 0000000000170ea0\nCall Trace:\nsimple_recursive_removal+0x33/0x2e0\n? debugfs_remove+0x60/0x60\ndebugfs_remove+0x40/0x60\nmlx5_debug_cq_remove+0x32/0x70 [mlx5_core]\nmlx5_core_destroy_cq+0x41/0x1d0 [mlx5_core]\ndevx_obj_cleanup+0x151/0x330 [mlx5_ib]\n? __pollwait+0xd0/0xd0\n? xas_load+0x5/0x70\n? xa_load+0x62/0xa0\ndestroy_hw_idr_uobject+0x20/0x80 [ib_uverbs]\nuverbs_destroy_uobject+0x3b/0x360 [ib_uverbs]\nuobj_destroy+0x54/0xa0 [ib_uverbs]\nib_uverbs_cmd_verbs+0xaf2/0x1160 [ib_uverbs]\n? uverbs_finalize_object+0xd0/0xd0 [ib_uverbs]\nib_uverbs_ioctl+0xc4/0x1b0 [ib_uverbs]\n__x64_sys_ioctl+0x3e4/0x8e0"], "name": "CVE-2021-47197", "package_state": [{"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": "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": "Affected", "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": "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": "2024-04-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47197\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47197\nhttps://lore.kernel.org/linux-cve-announce/2024041036-CVE-2021-47197-aaec@gregkh/T"], "threat_severity": "Low"}

{}