| { |
| "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: fix sleep in atomic at close time\n\nMatt reported a splat at msk close time:\n\n BUG: sleeping function called from invalid context at net/mptcp/protocol.c:2877\n in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 155, name: packetdrill\n preempt_count: 201, expected: 0\n RCU nest depth: 0, expected: 0\n 4 locks held by packetdrill/155:\n #0: ffff888001536990 (&sb->s_type->i_mutex_key#6){+.+.}-{3:3}, at: __sock_release (net/socket.c:650)\n #1: ffff88800b498130 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_close (net/mptcp/protocol.c:2973)\n #2: ffff88800b49a130 (sk_lock-AF_INET/1){+.+.}-{0:0}, at: __mptcp_close_ssk (net/mptcp/protocol.c:2363)\n #3: ffff88800b49a0b0 (slock-AF_INET){+...}-{2:2}, at: __lock_sock_fast (include/net/sock.h:1820)\n Preemption disabled at:\n 0x0\n CPU: 1 PID: 155 Comm: packetdrill Not tainted 6.1.0-rc5 #365\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Call Trace:\n <TASK>\n dump_stack_lvl (lib/dump_stack.c:107 (discriminator 4))\n __might_resched.cold (kernel/sched/core.c:9891)\n __mptcp_destroy_sock (include/linux/kernel.h:110)\n __mptcp_close (net/mptcp/protocol.c:2959)\n mptcp_subflow_queue_clean (include/net/sock.h:1777)\n __mptcp_close_ssk (net/mptcp/protocol.c:2363)\n mptcp_destroy_common (net/mptcp/protocol.c:3170)\n mptcp_destroy (include/net/sock.h:1495)\n __mptcp_destroy_sock (net/mptcp/protocol.c:2886)\n __mptcp_close (net/mptcp/protocol.c:2959)\n mptcp_close (net/mptcp/protocol.c:2974)\n inet_release (net/ipv4/af_inet.c:432)\n __sock_release (net/socket.c:651)\n sock_close (net/socket.c:1367)\n __fput (fs/file_table.c:320)\n task_work_run (kernel/task_work.c:181 (discriminator 1))\n exit_to_user_mode_prepare (include/linux/resume_user_mode.h:49)\n syscall_exit_to_user_mode (kernel/entry/common.c:130)\n do_syscall_64 (arch/x86/entry/common.c:87)\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)\n\nWe can't call mptcp_close under the 'fast' socket lock variant, replace\nit with a sock_lock_nested() as the relevant code is already under the\nlistening msk socket lock protection." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/mptcp/subflow.c" |
| ], |
| "versions": [ |
| { |
| "version": "30e51b923e436b631e8d5b77fa5e318c6b066dc7", |
| "lessThan": "d8e6c5500dbf0f3e87aace90d4beba6ae928e866", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "30e51b923e436b631e8d5b77fa5e318c6b066dc7", |
| "lessThan": "b4f166651d03b5484fa179817ba8ad4899a5a6ac", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "b41808bfa049d1bc7ce8ce1ad4d591f7d203ebb9", |
| "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/subflow.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.0", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.0", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.0.12", |
| "lessThanOrEqual": "6.0.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1", |
| "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": "6.0", |
| "versionEndExcluding": "6.0.12" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.0", |
| "versionEndExcluding": "6.1" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.19.14" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/d8e6c5500dbf0f3e87aace90d4beba6ae928e866" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b4f166651d03b5484fa179817ba8ad4899a5a6ac" |
| } |
| ], |
| "title": "mptcp: fix sleep in atomic at close time", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2022-49018", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
