{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49018", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-08-22T01:27:53.646Z", "datePublished": "2024-10-21T20:06:26.627Z", "dateUpdated": "2025-05-04T12:44:10.838Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T12:44:10.838Z"}, "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": 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"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"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-49018", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:12:58.392450Z"}}}], 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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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.0.12", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1", "versionStartIncluding": "6.0"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "5.19.14"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T12:44:10.838Z"}}}, "cveMetadata": {"cveId": "CVE-2022-49018", "state": "PUBLISHED", "dateUpdated": "2025-05-04T12:44:10.838Z", "dateReserved": "2024-08-22T01:27:53.646Z", "assignerOrgId": 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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."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: se corrige la suspensi\u00f3n en atomic en el momento del cierre Matt inform\u00f3 un splat en el momento del cierre de msk: ERROR: funci\u00f3n de suspensi\u00f3n llamada desde un contexto no v\u00e1lido en net/mptcp/protocol.c:2877 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 155, name: packetdrill preempt_count: 201, expected: 0 Profundidad de anidaci\u00f3n de RCU: 0, expected: 0 4 bloqueos mantenidos por packetdrill/155: #0: ffff888001536990 (&amp;sb-&gt;s_type-&gt;i_mutex_key#6){+.+.}-{3:3}, en: __sock_release (net/socket.c:650) #1: ffff88800b498130 (sk_lock-AF_INET){+.+.}-{0:0}, en: mptcp_close (net/mptcp/protocol.c:2973) #2: ffff88800b49a130 (sk_lock-AF_INET/1){+.+.}-{0:0}, en: __mptcp_close_ssk (net/mptcp/protocol.c:2363) #3: ffff88800b49a0b0 (slock-AF_INET){+...}-{2:2}, en: __lock_sock_fast (include/net/sock.h:1820) Preempci\u00f3n deshabilitada en: 0x0 CPU: 1 PID: 155 Comm: packetdrill No contaminado 6.1.0-rc5 #365 Nombre del hardware: QEMU PC est\u00e1ndar (i440FX + PIIX, 1996), BIOS 1.15.0-1 01/04/2014 Seguimiento de llamadas: dump_stack_lvl (lib/dump_stack.c:107 (discriminador 4)) __might_resched.cold (kernel/sched/core.c:9891) __mptcp_destroy_sock (include/linux/kernel.h:110) __mptcp_close (net/mptcp/protocol.c:2959) mptcp_subflow_queue_clean (include/net/sock.h:1777) __mptcp_close_ssk (net/mptcp/protocol.c:2363) mptcp_destroy_common (net/mptcp/protocol.c:3170) mptcp_destroy (include/net/sock.h:1495) __mptcp_destroy_sock (net/mptcp/protocol.c:2886) __mptcp_close (net/mptcp/protocol.c:2959) mptcp_close (net/mptcp/protocol.c:2974) inet_release (net/ipv4/af_inet.c:432) __sock_release (net/socket.c:651) sock_close (net/socket.c:1367) __fput (fs/file_table.c:320) task_work_run (kernel/task_work.c:181 (discriminador 1)) salir_a_modo_usuario_preparar (include/linux/reanudar_modo_usuario.h:49) No podemos llamar a mptcp_close bajo la variante de bloqueo de socket 'r\u00e1pido', reempl\u00e1celo con sock_lock_nested() ya que el c\u00f3digo relevante ya est\u00e1 bajo la protecci\u00f3n de bloqueo de socket msk de escucha."}], "id": "CVE-2022-49018", "lastModified": "2024-10-24T18:38:38.033", "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": "2024-10-21T20:15:12.973", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b4f166651d03b5484fa179817ba8ad4899a5a6ac"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d8e6c5500dbf0f3e87aace90d4beba6ae928e866"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-667"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mptcp: fix sleep in atomic at close time", "id": "2320685", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320685"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-460", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmptcp: fix sleep in atomic at close time\nMatt reported a splat at msk close time:\nBUG: sleeping function called from invalid context at net/mptcp/protocol.c:2877\nin_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 155, name: packetdrill\npreempt_count: 201, expected: 0\nRCU nest depth: 0, expected: 0\n4 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)\nPreemption disabled at:\n0x0\nCPU: 1 PID: 155 Comm: packetdrill Not tainted 6.1.0-rc5 #365\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n<TASK>\ndump_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)\nmptcp_subflow_queue_clean (include/net/sock.h:1777)\n__mptcp_close_ssk (net/mptcp/protocol.c:2363)\nmptcp_destroy_common (net/mptcp/protocol.c:3170)\nmptcp_destroy (include/net/sock.h:1495)\n__mptcp_destroy_sock (net/mptcp/protocol.c:2886)\n__mptcp_close (net/mptcp/protocol.c:2959)\nmptcp_close (net/mptcp/protocol.c:2974)\ninet_release (net/ipv4/af_inet.c:432)\n__sock_release (net/socket.c:651)\nsock_close (net/socket.c:1367)\n__fput (fs/file_table.c:320)\ntask_work_run (kernel/task_work.c:181 (discriminator 1))\nexit_to_user_mode_prepare (include/linux/resume_user_mode.h:49)\nsyscall_exit_to_user_mode (kernel/entry/common.c:130)\ndo_syscall_64 (arch/x86/entry/common.c:87)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)\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."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2022-49018", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not 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": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49018\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49018\nhttps://lore.kernel.org/linux-cve-announce/2024102153-CVE-2022-49018-7ee3@gregkh/T"], "statement": "Not actual for all versions of the Red Hat Enterprise Linux. For the latest versions (where enabled) already fixed.", "threat_severity": "Moderate"}