CVE-2022-49148

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40 04 00 ea ff ff 00 00 00 00 00 00 00 00 @.@.............\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n kmalloc_array include/linux/slab.h:621 [inline]\n kcalloc include/linux/slab.h:652 [inline]\n watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251\n pipe_ioctl+0x82/0x140 fs/pipe.c:632\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:874 [inline]\n __se_sys_ioctl fs/ioctl.c:860 [inline]\n __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/watch_queue.c"], "versions": [{"version": "c73be61cede5882f9605a852414db559c0ebedfd", "lessThan": "7169f60110915c8b53bffd43741fa020a75eb87a", "status": "affected", "versionType": "git"}, {"version": "c73be61cede5882f9605a852414db559c0ebedfd", "lessThan": 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40 04 00 ea ff ff 00 00 00 00 00 00 00 00 @.@.............\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n kmalloc_array include/linux/slab.h:621 [inline]\n kcalloc include/linux/slab.h:652 [inline]\n watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251\n pipe_ioctl+0x82/0x140 fs/pipe.c:632\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:874 [inline]\n __se_sys_ioctl fs/ioctl.c:860 [inline]\n __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/watch_queue.c"], "versions": [{"version": "c73be61cede5882f9605a852414db559c0ebedfd", "lessThan": "7169f60110915c8b53bffd43741fa020a75eb87a", "status": "affected", "versionType": "git"}, {"version": "c73be61cede5882f9605a852414db559c0ebedfd", "lessThan": 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["kernel/watch_queue.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "7169f60110915c8b53bffd43741fa020a75eb87a", "status": "affected", "version": "c73be61cede5882f9605a852414db559c0ebedfd", "versionType": "git"}, {"lessThan": "4913daecd04addb41bc96a9175a885e1c19862a8", "status": "affected", "version": "c73be61cede5882f9605a852414db559c0ebedfd", "versionType": "git"}, {"lessThan": "3963a5d1ff75585bddf0c3a918566a6be09d7520", "status": "affected", "version": "c73be61cede5882f9605a852414db559c0ebedfd", "versionType": "git"}, {"lessThan": "375cd2536494cfbcdda84ae8b3e35bf19d0250b9", "status": "affected", "version": "c73be61cede5882f9605a852414db559c0ebedfd", "versionType": "git"}, {"lessThan": "b490207017ba237d97b735b2aa66dc241ccd18f5", "status": "affected", "version": "c73be61cede5882f9605a852414db559c0ebedfd", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["kernel/watch_queue.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.8"}, {"lessThan": "5.8", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.110", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.33", "versionType": "semver"}, {"lessThanOrEqual": "5.16.*", "status": "unaffected", "version": "5.16.19", "versionType": "semver"}, {"lessThanOrEqual": "5.17.*", "status": "unaffected", "version": "5.17.2", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.18", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "552AD555-63DB-4D57-BBAA-86EA26658508", "versionEndExcluding": "5.10.110", "versionStartIncluding": "5.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "27C42AE8-B387-43E2-938A-E1C8B40BE6D5", "versionEndExcluding": "5.15.33", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B", "versionEndExcluding": "5.16.19", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF", "versionEndExcluding": "5.17.2", "versionStartIncluding": "5.17", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatch_queue: Free the page array when watch_queue is dismantled\n\nCommit 7ea1a0124b6d (\"watch_queue: Free the alloc bitmap when the\nwatch_queue is torn down\") took care of the bitmap, but not the page\narray.\n\n BUG: memory leak\n unreferenced object 0xffff88810d9bc140 (size 32):\n comm \"syz-executor335\", pid 3603, jiffies 4294946994 (age 12.840s)\n hex dump (first 32 bytes):\n 40 a7 40 04 00 ea ff ff 00 00 00 00 00 00 00 00 @.@.............\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n kmalloc_array include/linux/slab.h:621 [inline]\n kcalloc include/linux/slab.h:652 [inline]\n watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251\n pipe_ioctl+0x82/0x140 fs/pipe.c:632\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:874 [inline]\n __se_sys_ioctl fs/ioctl.c:860 [inline]\n __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: watch_queue: liberar la matriz de p\u00e1ginas cuando se desmantela watch_queue. el commit 7ea1a0124b6d (\"watch_queue: liberar el mapa de bits de asignaci\u00f3n cuando se desmantela watch_queue\") se hizo cargo del mapa de bits, pero no de la matriz de p\u00e1ginas. ERROR: p\u00e9rdida de memoria objeto no referenciado 0xffff88810d9bc140 (tama\u00f1o 32): comm \"syz-executor335\", pid 3603, jiffies 4294946994 (edad 12.840s) volcado hexadecimal (primeros 32 bytes): 40 a7 40 04 00 ea ff ff 00 00 00 00 00 00 00 00 @.@............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: kmalloc_array include/linux/slab.h:621 [en l\u00ednea] kcalloc include/linux/slab.h:652 [en l\u00ednea] watch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251 pipe_ioctl+0x82/0x140 fs/pipe.c:632 vfs_ioctl fs/ioctl.c:51 [en l\u00ednea] __do_sys_ioctl fs/ioctl.c:874 [en l\u00ednea] __se_sys_ioctl fs/ioctl.c:860 [en l\u00ednea] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea]"}], "id": "CVE-2022-49148", "lastModified": "2026-06-17T05:17:12.957", "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"}, {"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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-49148", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-10-01T19:47:50.624778Z", "version": "2.0.3"}}]}, "published": "2025-02-26T07:00:51.973", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/375cd2536494cfbcdda84ae8b3e35bf19d0250b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3963a5d1ff75585bddf0c3a918566a6be09d7520"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4913daecd04addb41bc96a9175a885e1c19862a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7169f60110915c8b53bffd43741fa020a75eb87a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b490207017ba237d97b735b2aa66dc241ccd18f5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: watch_queue: Free the page array when watch_queue is dismantled", "id": "2347729", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347729"}, "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"}, "cwe": "CWE-401", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwatch_queue: Free the page array when watch_queue is dismantled\nCommit 7ea1a0124b6d (\"watch_queue: Free the alloc bitmap when the\nwatch_queue is torn down\") took care of the bitmap, but not the page\narray.\nBUG: memory leak\nunreferenced object 0xffff88810d9bc140 (size 32):\ncomm \"syz-executor335\", pid 3603, jiffies 4294946994 (age 12.840s)\nhex dump (first 32 bytes):\n40 a7 40 04 00 ea ff ff 00 00 00 00 00 00 00 00 @.@.............\n00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\nbacktrace:\nkmalloc_array include/linux/slab.h:621 [inline]\nkcalloc include/linux/slab.h:652 [inline]\nwatch_queue_set_size+0x12f/0x2e0 kernel/watch_queue.c:251\npipe_ioctl+0x82/0x140 fs/pipe.c:632\nvfs_ioctl fs/ioctl.c:51 [inline]\n__do_sys_ioctl fs/ioctl.c:874 [inline]\n__se_sys_ioctl fs/ioctl.c:860 [inline]\n__x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]"], "name": "CVE-2022-49148", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49148\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49148\nhttps://lore.kernel.org/linux-cve-announce/2025022608-CVE-2022-49148-88d2@gregkh/T"], "threat_severity": "Moderate"}

{}