| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: always handle address removal under msk socket lock\n\nSyzkaller reported a lockdep splat in the PM control path:\n\n WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 sock_owned_by_me include/net/sock.h:1711 [inline]\n WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 msk_owned_by_me net/mptcp/protocol.h:363 [inline]\n WARNING: CPU: 0 PID: 6693 at ./include/net/sock.h:1711 mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788\n Modules linked in:\n CPU: 0 UID: 0 PID: 6693 Comm: syz.0.205 Not tainted 6.14.0-rc2-syzkaller-00303-gad1b832bf1cf #0\n Hardware name: Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024\n RIP: 0010:sock_owned_by_me include/net/sock.h:1711 [inline]\n RIP: 0010:msk_owned_by_me net/mptcp/protocol.h:363 [inline]\n RIP: 0010:mptcp_pm_nl_addr_send_ack+0x57c/0x610 net/mptcp/pm_netlink.c:788\n Code: 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 ca 7b d3 f5 eb b9 e8 c3 7b d3 f5 90 0f 0b 90 e9 dd fb ff ff e8 b5 7b d3 f5 90 <0f> 0b 90 e9 3e fb ff ff 44 89 f1 80 e1 07 38 c1 0f 8c eb fb ff ff\n RSP: 0000:ffffc900034f6f60 EFLAGS: 00010283\n RAX: ffffffff8bee3c2b RBX: 0000000000000001 RCX: 0000000000080000\n RDX: ffffc90004d42000 RSI: 000000000000a407 RDI: 000000000000a408\n RBP: ffffc900034f7030 R08: ffffffff8bee37f6 R09: 0100000000000000\n R10: dffffc0000000000 R11: ffffed100bcc62e4 R12: ffff88805e6316e0\n R13: ffff88805e630c00 R14: dffffc0000000000 R15: ffff88805e630c00\n FS: 00007f7e9a7e96c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000001b2fd18ff8 CR3: 0000000032c24000 CR4: 00000000003526f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n <TASK>\n mptcp_pm_remove_addr+0x103/0x1d0 net/mptcp/pm.c:59\n mptcp_pm_remove_anno_addr+0x1f4/0x2f0 net/mptcp/pm_netlink.c:1486\n mptcp_nl_remove_subflow_and_signal_addr net/mptcp/pm_netlink.c:1518 [inline]\n mptcp_pm_nl_del_addr_doit+0x118d/0x1af0 net/mptcp/pm_netlink.c:1629\n genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]\n genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]\n genl_rcv_msg+0xb1f/0xec0 net/netlink/genetlink.c:1210\n netlink_rcv_skb+0x206/0x480 net/netlink/af_netlink.c:2543\n genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219\n netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]\n netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348\n netlink_sendmsg+0x8de/0xcb0 net/netlink/af_netlink.c:1892\n sock_sendmsg_nosec net/socket.c:718 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:733\n ____sys_sendmsg+0x53a/0x860 net/socket.c:2573\n ___sys_sendmsg net/socket.c:2627 [inline]\n __sys_sendmsg+0x269/0x350 net/socket.c:2659\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n RIP: 0033:0x7f7e9998cde9\n Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\n RSP: 002b:00007f7e9a7e9038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\n RAX: ffffffffffffffda RBX: 00007f7e99ba5fa0 RCX: 00007f7e9998cde9\n RDX: 000000002000c094 RSI: 0000400000000000 RDI: 0000000000000007\n RBP: 00007f7e99a0e2a0 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\n R13: 0000000000000000 R14: 00007f7e99ba5fa0 R15: 00007fff49231088\n\nIndeed the PM can try to send a RM_ADDR over a msk without acquiring\nfirst the msk socket lock.\n\nThe bugged code-path comes from an early optimization: when there\nare no subflows, the PM should (usually) not send RM_ADDR\nnotifications.\n\nThe above statement is incorrect, as without locks another process\ncould concur\n---truncated---" |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/mptcp/pm_netlink.c" |
| ], |
| "versions": [ |
| { |
| "version": "b6c08380860b926752d57c8fa9911fa388c4b876", |
| "lessThan": "494ec285535632732eaa5786297a9ae4f731b5ff", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b6c08380860b926752d57c8fa9911fa388c4b876", |
| "lessThan": "7cca31035c05819643ffb5d7518e9a331b3f6651", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b6c08380860b926752d57c8fa9911fa388c4b876", |
| "lessThan": "8116fb4acd5d3f06cd37f84887dbe962b6703b1c", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b6c08380860b926752d57c8fa9911fa388c4b876", |
| "lessThan": "a05da2be18aae7e82572f8d795f41bb49f5dfc7d", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b6c08380860b926752d57c8fa9911fa388c4b876", |
| "lessThan": "4124b782ec2b1e2e490cf0bbf10f53dfd3479890", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b6c08380860b926752d57c8fa9911fa388c4b876", |
| "lessThan": "2c3de6dff4373f1036e003f49a32629359530bdb", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b6c08380860b926752d57c8fa9911fa388c4b876", |
| "lessThan": "f865c24bc55158313d5779fc81116023a6940ca3", |
| "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/mptcp/pm_netlink.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.10", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.10", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.235", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.179", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.130", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.81", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.18", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13.6", |
| "lessThanOrEqual": "6.13.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.14", |
| "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", |
| "versionEndExcluding": "5.10.235" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10", |
| "versionEndExcluding": "5.15.179" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10", |
| "versionEndExcluding": "6.1.130" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10", |
| "versionEndExcluding": "6.6.81" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10", |
| "versionEndExcluding": "6.12.18" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10", |
| "versionEndExcluding": "6.13.6" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.10", |
| "versionEndExcluding": "6.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/494ec285535632732eaa5786297a9ae4f731b5ff" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/7cca31035c05819643ffb5d7518e9a331b3f6651" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8116fb4acd5d3f06cd37f84887dbe962b6703b1c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a05da2be18aae7e82572f8d795f41bb49f5dfc7d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4124b782ec2b1e2e490cf0bbf10f53dfd3479890" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/2c3de6dff4373f1036e003f49a32629359530bdb" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f865c24bc55158313d5779fc81116023a6940ca3" |
| } |
| ], |
| "title": "mptcp: always handle address removal under msk socket lock", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2025-21875", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
