[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2021-47197":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T08:53:30.047Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":18,"aliases":19,"duplicate_of":9,"upstream":20,"downstream":21,"duplicates":42,"related":43,"reserved_at":9,"published_at":52,"modified_at":53,"state":54,"summary":55,"references_raw":64,"kevs":79,"epss":80,"epss_history":83,"metrics":347,"affected":353},"CVE-2021-47197","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 \u003C48> 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",null,[11],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":9,"likelihood_of_exploit":9,"capec":17},"NVD-CWE-NOINFO","Insufficient Information","NVD uses 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