{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47246", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-04-10T18:59:19.533Z", "datePublished": "2024-05-21T14:19:44.289Z", "dateUpdated": "2025-05-04T07:07:04.634Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T07:07:04.634Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix page reclaim for dead peer hairpin\n\nWhen adding a hairpin flow, a firmware-side send queue is created for\nthe peer net device, which claims some host memory pages for its\ninternal ring buffer. If the peer net device is removed/unbound before\nthe hairpin flow is deleted, then the send queue is not destroyed which\nleads to a stack trace on pci device remove:\n\n[ 748.005230] mlx5_core 0000:08:00.2: wait_func:1094:(pid 12985): MANAGE_PAGES(0x108) timeout. Will cause a leak of a command resource\n[ 748.005231] mlx5_core 0000:08:00.2: reclaim_pages:514:(pid 12985): failed reclaiming pages: err -110\n[ 748.001835] mlx5_core 0000:08:00.2: mlx5_reclaim_root_pages:653:(pid 12985): failed reclaiming pages (-110) for func id 0x0\n[ 748.002171] ------------[ cut here ]------------\n[ 748.001177] FW pages counter is 4 after reclaiming all pages\n[ 748.001186] WARNING: CPU: 1 PID: 12985 at drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:685 mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core] [ +0.002771] Modules linked in: cls_flower mlx5_ib mlx5_core ptp pps_core act_mirred sch_ingress openvswitch nsh xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm ib_umad ib_ipoib iw_cm ib_cm ib_uverbs ib_core overlay fuse [last unloaded: pps_core]\n[ 748.007225] CPU: 1 PID: 12985 Comm: tee Not tainted 5.12.0+ #1\n[ 748.001376] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 748.002315] RIP: 0010:mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core]\n[ 748.001679] Code: 28 00 00 00 0f 85 22 01 00 00 48 81 c4 b0 00 00 00 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 40 cc 19 a1 e8 9f 71 0e e2 <0f> 0b e9 30 ff ff ff 48 c7 c7 a0 cc 19 a1 e8 8c 71 0e e2 0f 0b e9\n[ 748.003781] RSP: 0018:ffff88815220faf8 EFLAGS: 00010286\n[ 748.001149] RAX: 0000000000000000 RBX: ffff8881b4900280 RCX: 0000000000000000\n[ 748.001445] RDX: 0000000000000027 RSI: 0000000000000004 RDI: ffffed102a441f51\n[ 748.001614] RBP: 00000000000032b9 R08: 0000000000000001 R09: ffffed1054a15ee8\n[ 748.001446] R10: ffff8882a50af73b R11: ffffed1054a15ee7 R12: fffffbfff07c1e30\n[ 748.001447] R13: dffffc0000000000 R14: ffff8881b492cba8 R15: 0000000000000000\n[ 748.001429] FS: 00007f58bd08b580(0000) GS:ffff8882a5080000(0000) knlGS:0000000000000000\n[ 748.001695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 748.001309] CR2: 000055a026351740 CR3: 00000001d3b48006 CR4: 0000000000370ea0\n[ 748.001506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 748.001483] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 748.001654] Call Trace:\n[ 748.000576] ? mlx5_satisfy_startup_pages+0x290/0x290 [mlx5_core]\n[ 748.001416] ? mlx5_cmd_teardown_hca+0xa2/0xd0 [mlx5_core]\n[ 748.001354] ? mlx5_cmd_init_hca+0x280/0x280 [mlx5_core]\n[ 748.001203] mlx5_function_teardown+0x30/0x60 [mlx5_core]\n[ 748.001275] mlx5_uninit_one+0xa7/0xc0 [mlx5_core]\n[ 748.001200] remove_one+0x5f/0xc0 [mlx5_core]\n[ 748.001075] pci_device_remove+0x9f/0x1d0\n[ 748.000833] device_release_driver_internal+0x1e0/0x490\n[ 748.001207] unbind_store+0x19f/0x200\n[ 748.000942] ? sysfs_file_ops+0x170/0x170\n[ 748.001000] kernfs_fop_write_iter+0x2bc/0x450\n[ 748.000970] new_sync_write+0x373/0x610\n[ 748.001124] ? new_sync_read+0x600/0x600\n[ 748.001057] ? lock_acquire+0x4d6/0x700\n[ 748.000908] ? lockdep_hardirqs_on_prepare+0x400/0x400\n[ 748.001126] ? fd_install+0x1c9/0x4d0\n[ 748.000951] vfs_write+0x4d0/0x800\n[ 748.000804] ksys_write+0xf9/0x1d0\n[ 748.000868] ? __x64_sys_read+0xb0/0xb0\n[ 748.000811] ? filp_open+0x50/0x50\n[ 748.000919] ? syscall_enter_from_user_mode+0x1d/0x50\n[ 748.001223] do_syscall_64+0x3f/0x80\n[ 748.000892] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 748.00\n---truncated---"}], "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/en_tc.c", "drivers/net/ethernet/mellanox/mlx5/core/transobj.c", "include/linux/mlx5/transobj.h"], "versions": [{"version": "4d8fcf216c90bc25e34ae2200aa8985ee3158898", "lessThan": "4b16118665e94c90a3e84a5190486fd0e4eedd74", "status": "affected", "versionType": "git"}, {"version": "4d8fcf216c90bc25e34ae2200aa8985ee3158898", "lessThan": "be7f3f401d224e1efe8112b2fa8b837eeb8c5e52", "status": "affected", "versionType": "git"}, {"version": "4d8fcf216c90bc25e34ae2200aa8985ee3158898", "lessThan": "b374c1304f6d3d4752ad1412427b7bf02bb1fd61", "status": "affected", "versionType": "git"}, {"version": "4d8fcf216c90bc25e34ae2200aa8985ee3158898", "lessThan": "a3e5fd9314dfc4314a9567cde96e1aef83a7458a", "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/en_tc.c", "drivers/net/ethernet/mellanox/mlx5/core/transobj.c", "include/linux/mlx5/transobj.h"], "versions": [{"version": "4.19", "status": "affected"}, {"version": "0", "lessThan": "4.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.128", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.46", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12.13", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.13", "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": "4.19", "versionEndExcluding": "5.4.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.10.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.12.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4b16118665e94c90a3e84a5190486fd0e4eedd74"}, {"url": "https://git.kernel.org/stable/c/be7f3f401d224e1efe8112b2fa8b837eeb8c5e52"}, {"url": "https://git.kernel.org/stable/c/b374c1304f6d3d4752ad1412427b7bf02bb1fd61"}, {"url": "https://git.kernel.org/stable/c/a3e5fd9314dfc4314a9567cde96e1aef83a7458a"}], "title": "net/mlx5e: Fix page reclaim for dead peer hairpin", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-06-17T17:37:58.510040Z", "id": "CVE-2021-47246", "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": "2024-06-17T17:39:51.136Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:07.928Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/4b16118665e94c90a3e84a5190486fd0e4eedd74", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/be7f3f401d224e1efe8112b2fa8b837eeb8c5e52", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b374c1304f6d3d4752ad1412427b7bf02bb1fd61", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a3e5fd9314dfc4314a9567cde96e1aef83a7458a", "tags": ["x_transferred"]}]}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/4b16118665e94c90a3e84a5190486fd0e4eedd74", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/be7f3f401d224e1efe8112b2fa8b837eeb8c5e52", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/b374c1304f6d3d4752ad1412427b7bf02bb1fd61", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/a3e5fd9314dfc4314a9567cde96e1aef83a7458a", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:07.928Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47246", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-06-17T17:37:58.510040Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-17T17:37:59.649Z"}}], "cna": {"title": "net/mlx5e: Fix page reclaim for dead peer hairpin", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4d8fcf216c90", "lessThan": "4b16118665e9", "versionType": "git"}, {"status": "affected", "version": "4d8fcf216c90", "lessThan": "be7f3f401d22", "versionType": "git"}, {"status": "affected", "version": "4d8fcf216c90", "lessThan": "b374c1304f6d", "versionType": "git"}, {"status": "affected", "version": "4d8fcf216c90", "lessThan": "a3e5fd9314df", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_tc.c", "drivers/net/ethernet/mellanox/mlx5/core/transobj.c", "include/linux/mlx5/transobj.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.19"}, {"status": "unaffected", "version": "0", "lessThan": "4.19", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.128", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.46", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.12.13", "versionType": "semver", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/mellanox/mlx5/core/en_tc.c", "drivers/net/ethernet/mellanox/mlx5/core/transobj.c", "include/linux/mlx5/transobj.h"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/4b16118665e94c90a3e84a5190486fd0e4eedd74"}, {"url": "https://git.kernel.org/stable/c/be7f3f401d224e1efe8112b2fa8b837eeb8c5e52"}, {"url": "https://git.kernel.org/stable/c/b374c1304f6d3d4752ad1412427b7bf02bb1fd61"}, {"url": "https://git.kernel.org/stable/c/a3e5fd9314dfc4314a9567cde96e1aef83a7458a"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix page reclaim for dead peer hairpin\n\nWhen adding a hairpin flow, a firmware-side send queue is created for\nthe peer net device, which claims some host memory pages for its\ninternal ring buffer. If the peer net device is removed/unbound before\nthe hairpin flow is deleted, then the send queue is not destroyed which\nleads to a stack trace on pci device remove:\n\n[ 748.005230] mlx5_core 0000:08:00.2: wait_func:1094:(pid 12985): MANAGE_PAGES(0x108) timeout. Will cause a leak of a command resource\n[ 748.005231] mlx5_core 0000:08:00.2: reclaim_pages:514:(pid 12985): failed reclaiming pages: err -110\n[ 748.001835] mlx5_core 0000:08:00.2: mlx5_reclaim_root_pages:653:(pid 12985): failed reclaiming pages (-110) for func id 0x0\n[ 748.002171] ------------[ cut here ]------------\n[ 748.001177] FW pages counter is 4 after reclaiming all pages\n[ 748.001186] WARNING: CPU: 1 PID: 12985 at drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:685 mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core] [ +0.002771] Modules linked in: cls_flower mlx5_ib mlx5_core ptp pps_core act_mirred sch_ingress openvswitch nsh xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm ib_umad ib_ipoib iw_cm ib_cm ib_uverbs ib_core overlay fuse [last unloaded: pps_core]\n[ 748.007225] CPU: 1 PID: 12985 Comm: tee Not tainted 5.12.0+ #1\n[ 748.001376] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 748.002315] RIP: 0010:mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core]\n[ 748.001679] Code: 28 00 00 00 0f 85 22 01 00 00 48 81 c4 b0 00 00 00 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 40 cc 19 a1 e8 9f 71 0e e2 <0f> 0b e9 30 ff ff ff 48 c7 c7 a0 cc 19 a1 e8 8c 71 0e e2 0f 0b e9\n[ 748.003781] RSP: 0018:ffff88815220faf8 EFLAGS: 00010286\n[ 748.001149] RAX: 0000000000000000 RBX: ffff8881b4900280 RCX: 0000000000000000\n[ 748.001445] RDX: 0000000000000027 RSI: 0000000000000004 RDI: ffffed102a441f51\n[ 748.001614] RBP: 00000000000032b9 R08: 0000000000000001 R09: ffffed1054a15ee8\n[ 748.001446] R10: ffff8882a50af73b R11: ffffed1054a15ee7 R12: fffffbfff07c1e30\n[ 748.001447] R13: dffffc0000000000 R14: ffff8881b492cba8 R15: 0000000000000000\n[ 748.001429] FS: 00007f58bd08b580(0000) GS:ffff8882a5080000(0000) knlGS:0000000000000000\n[ 748.001695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 748.001309] CR2: 000055a026351740 CR3: 00000001d3b48006 CR4: 0000000000370ea0\n[ 748.001506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 748.001483] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 748.001654] Call Trace:\n[ 748.000576] ? mlx5_satisfy_startup_pages+0x290/0x290 [mlx5_core]\n[ 748.001416] ? mlx5_cmd_teardown_hca+0xa2/0xd0 [mlx5_core]\n[ 748.001354] ? mlx5_cmd_init_hca+0x280/0x280 [mlx5_core]\n[ 748.001203] mlx5_function_teardown+0x30/0x60 [mlx5_core]\n[ 748.001275] mlx5_uninit_one+0xa7/0xc0 [mlx5_core]\n[ 748.001200] remove_one+0x5f/0xc0 [mlx5_core]\n[ 748.001075] pci_device_remove+0x9f/0x1d0\n[ 748.000833] device_release_driver_internal+0x1e0/0x490\n[ 748.001207] unbind_store+0x19f/0x200\n[ 748.000942] ? sysfs_file_ops+0x170/0x170\n[ 748.001000] kernfs_fop_write_iter+0x2bc/0x450\n[ 748.000970] new_sync_write+0x373/0x610\n[ 748.001124] ? new_sync_read+0x600/0x600\n[ 748.001057] ? lock_acquire+0x4d6/0x700\n[ 748.000908] ? lockdep_hardirqs_on_prepare+0x400/0x400\n[ 748.001126] ? fd_install+0x1c9/0x4d0\n[ 748.000951] vfs_write+0x4d0/0x800\n[ 748.000804] ksys_write+0xf9/0x1d0\n[ 748.000868] ? __x64_sys_read+0xb0/0xb0\n[ 748.000811] ? filp_open+0x50/0x50\n[ 748.000919] ? syscall_enter_from_user_mode+0x1d/0x50\n[ 748.001223] do_syscall_64+0x3f/0x80\n[ 748.000892] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 748.00\n---truncated---"}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T12:02:13.658Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47246", "state": "PUBLISHED", "dateUpdated": "2024-11-04T12:02:13.658Z", "dateReserved": "2024-04-10T18:59:19.533Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-21T14:19:44.289Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "84108161-A7EE-4126-A306-8F64E51801C4", "versionEndExcluding": "5.4.128", "versionStartIncluding": "4.19", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "59455D13-A902-42E1-97F7-5ED579777193", "versionEndExcluding": "5.10.46", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7806E7E5-6D4F-4E18-81C1-79B3C60EE855", "versionEndExcluding": "5.12.13", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*", "matchCriteriaId": "0CBAD0FC-C281-4666-AB2F-F8E6E1165DF7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*", "matchCriteriaId": "96AC23B2-D46A-49D9-8203-8E1BEDCA8532", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*", "matchCriteriaId": "DA610E30-717C-4700-9F77-A3C9244F3BFD", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:*", "matchCriteriaId": "1ECD33F5-85BE-430B-8F86-8D7BD560311D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:*", "matchCriteriaId": "CF351855-2437-4CF5-AD7C-BDFA51F27683", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:5.13:rc6:*:*:*:*:*:*", "matchCriteriaId": "25A855BA-2118-44F2-90EF-EBBB12AF51EF", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix page reclaim for dead peer hairpin\n\nWhen adding a hairpin flow, a firmware-side send queue is created for\nthe peer net device, which claims some host memory pages for its\ninternal ring buffer. If the peer net device is removed/unbound before\nthe hairpin flow is deleted, then the send queue is not destroyed which\nleads to a stack trace on pci device remove:\n\n[ 748.005230] mlx5_core 0000:08:00.2: wait_func:1094:(pid 12985): MANAGE_PAGES(0x108) timeout. Will cause a leak of a command resource\n[ 748.005231] mlx5_core 0000:08:00.2: reclaim_pages:514:(pid 12985): failed reclaiming pages: err -110\n[ 748.001835] mlx5_core 0000:08:00.2: mlx5_reclaim_root_pages:653:(pid 12985): failed reclaiming pages (-110) for func id 0x0\n[ 748.002171] ------------[ cut here ]------------\n[ 748.001177] FW pages counter is 4 after reclaiming all pages\n[ 748.001186] WARNING: CPU: 1 PID: 12985 at drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:685 mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core] [ +0.002771] Modules linked in: cls_flower mlx5_ib mlx5_core ptp pps_core act_mirred sch_ingress openvswitch nsh xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm ib_umad ib_ipoib iw_cm ib_cm ib_uverbs ib_core overlay fuse [last unloaded: pps_core]\n[ 748.007225] CPU: 1 PID: 12985 Comm: tee Not tainted 5.12.0+ #1\n[ 748.001376] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 748.002315] RIP: 0010:mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core]\n[ 748.001679] Code: 28 00 00 00 0f 85 22 01 00 00 48 81 c4 b0 00 00 00 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 40 cc 19 a1 e8 9f 71 0e e2 <0f> 0b e9 30 ff ff ff 48 c7 c7 a0 cc 19 a1 e8 8c 71 0e e2 0f 0b e9\n[ 748.003781] RSP: 0018:ffff88815220faf8 EFLAGS: 00010286\n[ 748.001149] RAX: 0000000000000000 RBX: ffff8881b4900280 RCX: 0000000000000000\n[ 748.001445] RDX: 0000000000000027 RSI: 0000000000000004 RDI: ffffed102a441f51\n[ 748.001614] RBP: 00000000000032b9 R08: 0000000000000001 R09: ffffed1054a15ee8\n[ 748.001446] R10: ffff8882a50af73b R11: ffffed1054a15ee7 R12: fffffbfff07c1e30\n[ 748.001447] R13: dffffc0000000000 R14: ffff8881b492cba8 R15: 0000000000000000\n[ 748.001429] FS: 00007f58bd08b580(0000) GS:ffff8882a5080000(0000) knlGS:0000000000000000\n[ 748.001695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 748.001309] CR2: 000055a026351740 CR3: 00000001d3b48006 CR4: 0000000000370ea0\n[ 748.001506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 748.001483] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 748.001654] Call Trace:\n[ 748.000576] ? mlx5_satisfy_startup_pages+0x290/0x290 [mlx5_core]\n[ 748.001416] ? mlx5_cmd_teardown_hca+0xa2/0xd0 [mlx5_core]\n[ 748.001354] ? mlx5_cmd_init_hca+0x280/0x280 [mlx5_core]\n[ 748.001203] mlx5_function_teardown+0x30/0x60 [mlx5_core]\n[ 748.001275] mlx5_uninit_one+0xa7/0xc0 [mlx5_core]\n[ 748.001200] remove_one+0x5f/0xc0 [mlx5_core]\n[ 748.001075] pci_device_remove+0x9f/0x1d0\n[ 748.000833] device_release_driver_internal+0x1e0/0x490\n[ 748.001207] unbind_store+0x19f/0x200\n[ 748.000942] ? sysfs_file_ops+0x170/0x170\n[ 748.001000] kernfs_fop_write_iter+0x2bc/0x450\n[ 748.000970] new_sync_write+0x373/0x610\n[ 748.001124] ? new_sync_read+0x600/0x600\n[ 748.001057] ? lock_acquire+0x4d6/0x700\n[ 748.000908] ? lockdep_hardirqs_on_prepare+0x400/0x400\n[ 748.001126] ? fd_install+0x1c9/0x4d0\n[ 748.000951] vfs_write+0x4d0/0x800\n[ 748.000804] ksys_write+0xf9/0x1d0\n[ 748.000868] ? __x64_sys_read+0xb0/0xb0\n[ 748.000811] ? filp_open+0x50/0x50\n[ 748.000919] ? syscall_enter_from_user_mode+0x1d/0x50\n[ 748.001223] do_syscall_64+0x3f/0x80\n[ 748.000892] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 748.00\n---truncated---"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net/mlx5e: Reparar la recuperaci\u00f3n de p\u00e1gina para la horquilla del par inactiva. Al agregar un flujo de horquilla, se crea una cola de env\u00edo del lado del firmware para el dispositivo de red del par, que reclama algunas p\u00e1ginas de memoria del host para su buffer de anillo interno. Si el dispositivo peer net se elimina/desvincula antes de eliminar el flujo de horquilla, entonces la cola de env\u00edo no se destruye, lo que genera un seguimiento de la pila en la eliminaci\u00f3n del dispositivo pci: [ 748.005230] mlx5_core 0000:08:00.2: wait_func:1094:(pid 12985): Tiempo de espera de MANAGE_PAGES(0x108). Provocar\u00e1 una fuga de un recurso de comando [748.005231] mlx5_core 0000:08:00.2: reclaim_pages:514:(pid 12985): error al recuperar p\u00e1ginas: err -110 [748.001835] mlx5_core 0000:08:00.2: mlx5_reclaim_root_pages:653:(pid 12985): error al recuperar p\u00e1ginas (-110) para el ID de funci\u00f3n 0x0 [748.002171] ------------[ cortar aqu\u00ed ]------------ [ 748.001177] p\u00e1ginas FW el contador es 4 despu\u00e9s de reclamar todas las p\u00e1ginas [748.001186] ADVERTENCIA: CPU: 1 PID: 12985 en drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:685 mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core] [+0.002771] M\u00f3dulos vinculados en: cls_flower mlx5_ib mlx5_core ptp pps_core act_mirred sch_ingress openvswitch nsh xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm ib_umad ib_ipoib iw_cm ib_cm ib_uverbs ib_core overlay fuse [\u00faltima descarga: pps_core] [ 748.007225] CPU: 1 PID: 12985 Comm: tee Not tainted 5.12.0+ #1 [ 748.001376] Nombre del hardware: PC est\u00e1ndar QEMU (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 01/04/2014 [748.002315] RIP: 0010:mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core] [748.001679] C\u00f3digo: 28 00 00 00 0f 85 22 01 00 00 48 81 c4 b0 00 00 00 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 40 cc 19 a1 e8 9f 71 0e e2 &lt;0f&gt; 0b e9 30 ff ff ff 48 c7 c7 a0 cc 19 a1 e8 8c 71 0e e2 0f 0b e9 [ 748.003781] RSP: 0018:ffff88815220faf8 GS: 00010286 [748.001149] RAX: 0000000000000000 RBX: ffff8881b4900280 RCX: 0000000000000000 [ 748.001445] RDX: 0000000000000027 RSI: 0000000000000004 RDI: a441f51 [ 748.001614] RBP: 00000000000032b9 R08: 0000000000000001 R09: ffffed1054a15ee8 [ 748.001446] R10: ffff8882a50af73b R11: ee7 R12: ffffbfff07c1e30 [ 748.001447] R13: dffffc0000000000 R14: ffff8881b492cba8 R15: 0000000000000000 [ 748.001429] FS: 00007f58bd08b580(0000) GS:ffff8882a5080000(0000) 000000000000 [ 748.001695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 748.001309] CR2: 000055a026351740 CR3: 00000001d3b48006 CR4 : 0000000000370ea0 [ 748.001506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 748.001483] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [748.001654] Seguimiento de llamadas: [748.000576]? mlx5_satisfy_startup_pages+0x290/0x290 [mlx5_core] [748.001416]? mlx5_cmd_teardown_hca+0xa2/0xd0 [mlx5_core] [748.001354]? mlx5_cmd_init_hca+0x280/0x280 [mlx5_core] [ 748.001203] mlx5_function_teardown+0x30/0x60 [mlx5_core] [ 748.001275] mlx5_uninit_one+0xa7/0xc0 [mlx5_core] [ 748.001200] uno+0x5f/0xc0 [mlx5_core] [ 748.001075] pci_device_remove+0x9f/0x1d0 [ 748.000833] device_release_driver_internal+0x1e0/0x490 [ 748.001207] unbind_store+0x19f/0x200 [ 748.000942] ? sysfs_file_ops+0x170/0x170 [ 748.001000] kernfs_fop_write_iter+0x2bc/0x450 [ 748.000970] new_sync_write+0x373/0x610 [ 748.001124] ? new_sync_read+0x600/0x600 [748.001057]? lock_acquire+0x4d6/0x700 [748.000908]? lockdep_hardirqs_on_prepare+0x400/0x400 [748.001126]? fd_install+0x1c9/0x4d0 [ 748.000951] vfs_write+0x4d0/0x800 [ 748.000804] ksys_write+0xf9/0x1d0 [ 748.000868] ? __x64_sys_read+0xb0/0xb0 [748.000811]? filp_open+0x50/0x50 [748.000919]? syscall_enter_from_user_mode+0x1d/0x50 [ 748.001223] do_syscall_64+0x3f/0x80 [ 748.000892] Entry_SYSCALL_64_after_hwframe+0x44/0xae [ 748.00 ---truncado---"}], "id": "CVE-2021-47246", "lastModified": "2025-04-29T19:45:28.480", "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": "2024-05-21T15:15:13.623", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b16118665e94c90a3e84a5190486fd0e4eedd74"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3e5fd9314dfc4314a9567cde96e1aef83a7458a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b374c1304f6d3d4752ad1412427b7bf02bb1fd61"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/be7f3f401d224e1efe8112b2fa8b837eeb8c5e52"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4b16118665e94c90a3e84a5190486fd0e4eedd74"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3e5fd9314dfc4314a9567cde96e1aef83a7458a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b374c1304f6d3d4752ad1412427b7bf02bb1fd61"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/be7f3f401d224e1efe8112b2fa8b837eeb8c5e52"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net/mlx5e: Fix page reclaim for dead peer hairpin", "id": "2282567", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282567"}, "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/mlx5e: Fix page reclaim for dead peer hairpin\nWhen adding a hairpin flow, a firmware-side send queue is created for\nthe peer net device, which claims some host memory pages for its\ninternal ring buffer. If the peer net device is removed/unbound before\nthe hairpin flow is deleted, then the send queue is not destroyed which\nleads to a stack trace on pci device remove:\n[ 748.005230] mlx5_core 0000:08:00.2: wait_func:1094:(pid 12985): MANAGE_PAGES(0x108) timeout. Will cause a leak of a command resource\n[ 748.005231] mlx5_core 0000:08:00.2: reclaim_pages:514:(pid 12985): failed reclaiming pages: err -110\n[ 748.001835] mlx5_core 0000:08:00.2: mlx5_reclaim_root_pages:653:(pid 12985): failed reclaiming pages (-110) for func id 0x0\n[ 748.002171] ------------[ cut here ]------------\n[ 748.001177] FW pages counter is 4 after reclaiming all pages\n[ 748.001186] WARNING: CPU: 1 PID: 12985 at drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:685 mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core] [ +0.002771] Modules linked in: cls_flower mlx5_ib mlx5_core ptp pps_core act_mirred sch_ingress openvswitch nsh xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm ib_umad ib_ipoib iw_cm ib_cm ib_uverbs ib_core overlay fuse [last unloaded: pps_core]\n[ 748.007225] CPU: 1 PID: 12985 Comm: tee Not tainted 5.12.0+ #1\n[ 748.001376] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 748.002315] RIP: 0010:mlx5_reclaim_startup_pages+0x34b/0x460 [mlx5_core]\n[ 748.001679] Code: 28 00 00 00 0f 85 22 01 00 00 48 81 c4 b0 00 00 00 31 c0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c7 40 cc 19 a1 e8 9f 71 0e e2 <0f> 0b e9 30 ff ff ff 48 c7 c7 a0 cc 19 a1 e8 8c 71 0e e2 0f 0b e9\n[ 748.003781] RSP: 0018:ffff88815220faf8 EFLAGS: 00010286\n[ 748.001149] RAX: 0000000000000000 RBX: ffff8881b4900280 RCX: 0000000000000000\n[ 748.001445] RDX: 0000000000000027 RSI: 0000000000000004 RDI: ffffed102a441f51\n[ 748.001614] RBP: 00000000000032b9 R08: 0000000000000001 R09: ffffed1054a15ee8\n[ 748.001446] R10: ffff8882a50af73b R11: ffffed1054a15ee7 R12: fffffbfff07c1e30\n[ 748.001447] R13: dffffc0000000000 R14: ffff8881b492cba8 R15: 0000000000000000\n[ 748.001429] FS: 00007f58bd08b580(0000) GS:ffff8882a5080000(0000) knlGS:0000000000000000\n[ 748.001695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 748.001309] CR2: 000055a026351740 CR3: 00000001d3b48006 CR4: 0000000000370ea0\n[ 748.001506] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 748.001483] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 748.001654] Call Trace:\n[ 748.000576] ? mlx5_satisfy_startup_pages+0x290/0x290 [mlx5_core]\n[ 748.001416] ? mlx5_cmd_teardown_hca+0xa2/0xd0 [mlx5_core]\n[ 748.001354] ? mlx5_cmd_init_hca+0x280/0x280 [mlx5_core]\n[ 748.001203] mlx5_function_teardown+0x30/0x60 [mlx5_core]\n[ 748.001275] mlx5_uninit_one+0xa7/0xc0 [mlx5_core]\n[ 748.001200] remove_one+0x5f/0xc0 [mlx5_core]\n[ 748.001075] pci_device_remove+0x9f/0x1d0\n[ 748.000833] device_release_driver_internal+0x1e0/0x490\n[ 748.001207] unbind_store+0x19f/0x200\n[ 748.000942] ? sysfs_file_ops+0x170/0x170\n[ 748.001000] kernfs_fop_write_iter+0x2bc/0x450\n[ 748.000970] new_sync_write+0x373/0x610\n[ 748.001124] ? new_sync_read+0x600/0x600\n[ 748.001057] ? lock_acquire+0x4d6/0x700\n[ 748.000908] ? lockdep_hardirqs_on_prepare+0x400/0x400\n[ 748.001126] ? fd_install+0x1c9/0x4d0\n[ 748.000951] vfs_write+0x4d0/0x800\n[ 748.000804] ksys_write+0xf9/0x1d0\n[ 748.000868] ? __x64_sys_read+0xb0/0xb0\n[ 748.000811] ? filp_open+0x50/0x50\n[ 748.000919] ? syscall_enter_from_user_mode+0x1d/0x50\n[ 748.001223] do_syscall_64+0x3f/0x80\n[ 748.000892] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 748.00\n---truncated---"], "name": "CVE-2021-47246", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47246\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47246\nhttps://lore.kernel.org/linux-cve-announce/2024052143-CVE-2021-47246-9896@gregkh/T"], "threat_severity": "Low"}

{}