{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-49801", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-05-01T14:05:17.225Z", "datePublished": "2025-05-01T14:09:29.682Z", "dateUpdated": "2026-05-11T19:07:03.383Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:07:03.383Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix memory leak in tracing_read_pipe()\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff888105a18900 (size 128):\n comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s)\n hex dump (first 32 bytes):\n 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...B.X.\n 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140\n [<000000006af00822>] krealloc+0x8d/0xf0\n [<00000000c309be6a>] trace_iter_expand_format+0x99/0x150\n [<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0\n [<0000000065629d9d>] trace_event_printf+0xb6/0xf0\n [<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0\n [<00000000d22db172>] print_trace_line+0x73c/0x1480\n [<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0\n [<0000000015b58459>] vfs_read+0x17b/0x7c0\n [<000000004aeee8ed>] ksys_read+0xed/0x1c0\n [<0000000063d3d898>] do_syscall_64+0x3b/0x90\n [<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\niter->fmt alloced in\n tracing_read_pipe() -> .. ->trace_iter_expand_format(), but not\nfreed, to fix, add free in tracing_release_pipe()"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/trace.c"], "versions": [{"version": "efbbdaa22bb78761bff8dfdde027ad04bedd47ce", "lessThan": "2c21ee020ce43d744ecd7f3e9bddfcaafef270ce", "status": "affected", "versionType": "git"}, {"version": "efbbdaa22bb78761bff8dfdde027ad04bedd47ce", "lessThan": "a7d3f8f33c113478737bc61bb32ec5f9a987da7d", "status": "affected", "versionType": "git"}, {"version": "efbbdaa22bb78761bff8dfdde027ad04bedd47ce", "lessThan": "649e72070cbbb8600eb823833e4748f5a0815116", "status": "affected", "versionType": "git"}, {"version": "840ce9cfc86f89c335625ec297acc0375f82e19b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/trace.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.80", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.10", "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": "5.12", "versionEndExcluding": "5.15.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.190"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/2c21ee020ce43d744ecd7f3e9bddfcaafef270ce"}, {"url": "https://git.kernel.org/stable/c/a7d3f8f33c113478737bc61bb32ec5f9a987da7d"}, {"url": "https://git.kernel.org/stable/c/649e72070cbbb8600eb823833e4748f5a0815116"}], "title": "tracing: Fix memory leak in tracing_read_pipe()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6411F9A9-08F6-4422-86BF-B6B5AEE55AF1", "versionEndExcluding": "5.11", "versionStartIncluding": "5.10.190", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "88C37172-FB0B-4424-9DCA-F12A64825F4F", "versionEndExcluding": "5.15.80", "versionStartIncluding": "5.12", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "64F9ADD1-3ADB-4D66-A00F-4A83010B05F0", "versionEndExcluding": "6.0.10", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "E7E331DA-1FB0-4DEC-91AC-7DA69D461C11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*", "matchCriteriaId": "17F0B248-42CF-4AE6-A469-BB1BAE7F4705", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*", "matchCriteriaId": "E2422816-0C14-4B5E-A1E6-A9D776E5C49B", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*", "matchCriteriaId": "1C6E00FE-5FB9-4D20-A1A1-5A32128F9B76", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*", "matchCriteriaId": "35B26BE4-43A6-4A36-A7F6-5B3F572D9186", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix memory leak in tracing_read_pipe()\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff888105a18900 (size 128):\n comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s)\n hex dump (first 32 bytes):\n 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...B.X.\n 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140\n [<000000006af00822>] krealloc+0x8d/0xf0\n [<00000000c309be6a>] trace_iter_expand_format+0x99/0x150\n [<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0\n [<0000000065629d9d>] trace_event_printf+0xb6/0xf0\n [<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0\n [<00000000d22db172>] print_trace_line+0x73c/0x1480\n [<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0\n [<0000000015b58459>] vfs_read+0x17b/0x7c0\n [<000000004aeee8ed>] ksys_read+0xed/0x1c0\n [<0000000063d3d898>] do_syscall_64+0x3b/0x90\n [<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\niter->fmt alloced in\n tracing_read_pipe() -> .. ->trace_iter_expand_format(), but not\nfreed, to fix, add free in tracing_release_pipe()"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: tracing: Fix memory leakage in tracing_read_pipe() kmemleak informa de este problema: unreferenced object 0xffff888105a18900 (size 128): comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s) hex dump (first 32 bytes): 25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&amp;...BX 03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [&lt;00000000560143a1&gt;] __kmalloc_nodo_rastreador_llamador+0x4a/0x140 [&lt;000000006af00822&gt;] krealloc+0x8d/0xf0 [&lt;00000000c309be6a&gt;] trace_iter_expand_format+0x99/0x150 [&lt;000000005a53bdb6&gt;] trace_check_vprintf+0x1e0/0x11d0 [&lt;0000000065629d9d&gt;] trace_event_printf+0xb6/0xf0 [&lt;000000009a690dc7&gt;] trace_raw_output_bpf_trace_printk+0x89/0xc0 [&lt;00000000d22db172&gt;] imprimir_l\u00ednea_de_seguimiento+0x73c/0x1480 [&lt;00000000cdba76ba&gt;] conducto_de_lectura_de_seguimiento+0x45c/0x9f0 [&lt;0000000015b58459&gt;] lectura_vfs+0x17b/0x7c0 [&lt;000000004aeee8ed&gt;] lectura_ksys+0xed/0x1c0 [&lt;0000000063d3d898&gt;] hacer_llamada_al_sistema_64+0x3b/0x90 [&lt;00000000a06dda7f&gt;] entrada_SYSCALL_64_despu\u00e9s_de_hwframe+0x63/0xcd iter-&gt;fmt asignado en conducto_de_lectura_de_seguimiento() -&gt; .. -&gt;trace_iter_expand_format(), pero no se libera, para solucionarlo, agregue free en tracing_release_pipe()"}], "id": "CVE-2022-49801", "lastModified": "2025-11-07T19:34:49.877", "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": "2025-05-01T15:16:03.407", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2c21ee020ce43d744ecd7f3e9bddfcaafef270ce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/649e72070cbbb8600eb823833e4748f5a0815116"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a7d3f8f33c113478737bc61bb32ec5f9a987da7d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: tracing: Fix memory leak in tracing_read_pipe()", "id": "2363397", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363397"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ntracing: Fix memory leak in tracing_read_pipe()\nkmemleak reports this issue:\nunreferenced object 0xffff888105a18900 (size 128):\ncomm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s)\nhex dump (first 32 bytes):\n25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04 %s......&...B.X.\n03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00 ................\nbacktrace:\n[<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140\n[<000000006af00822>] krealloc+0x8d/0xf0\n[<00000000c309be6a>] trace_iter_expand_format+0x99/0x150\n[<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0\n[<0000000065629d9d>] trace_event_printf+0xb6/0xf0\n[<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0\n[<00000000d22db172>] print_trace_line+0x73c/0x1480\n[<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0\n[<0000000015b58459>] vfs_read+0x17b/0x7c0\n[<000000004aeee8ed>] ksys_read+0xed/0x1c0\n[<0000000063d3d898>] do_syscall_64+0x3b/0x90\n[<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\niter->fmt alloced in\ntracing_read_pipe() -> .. ->trace_iter_expand_format(), but not\nfreed, to fix, add free in tracing_release_pipe()"], "name": "CVE-2022-49801", "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": "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": "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49801\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49801\nhttps://lore.kernel.org/linux-cve-announce/2025050126-CVE-2022-49801-2191@gregkh/T"], "statement": "A memory leak was discovered in tracing_read_pipe(), where memory allocated to iter->fmt via krealloc() was not freed on release. However, this issue does not involve memory corruption, privilege escalation, or user-controllable impact.", "threat_severity": "Moderate"}

{"created": "2025-06-24T09:51:42.041815+00:00", "updated": "2025-06-24T09:51:42.041861+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}