| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "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" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47197", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
