CVE-2022-49148 (GCVE-0-2022-49148)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-05-11 18:54
VLAI
Title
watch_queue: Free the page array when watch_queue is dismantled
Summary
In the Linux kernel, the following vulnerability has been resolved: watch_queue: Free the page array when watch_queue is dismantled Commit 7ea1a0124b6d ("watch_queue: Free the alloc bitmap when the watch_queue is torn down") took care of the bitmap, but not the page array. BUG: memory leak unreferenced object 0xffff88810d9bc140 (size 32): comm "syz-executor335", pid 3603, jiffies 4294946994 (age 12.840s) hex dump (first 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 [inline] kcalloc include/linux/slab.h:652 [inline] 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 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0xfc/0x140 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c73be61cede5882f9605a852414db559c0ebedfd , < 7169f60110915c8b53bffd43741fa020a75eb87a (git)
Affected: c73be61cede5882f9605a852414db559c0ebedfd , < 4913daecd04addb41bc96a9175a885e1c19862a8 (git)
Affected: c73be61cede5882f9605a852414db559c0ebedfd , < 3963a5d1ff75585bddf0c3a918566a6be09d7520 (git)
Affected: c73be61cede5882f9605a852414db559c0ebedfd , < 375cd2536494cfbcdda84ae8b3e35bf19d0250b9 (git)
Affected: c73be61cede5882f9605a852414db559c0ebedfd , < b490207017ba237d97b735b2aa66dc241ccd18f5 (git)
Create a notification for this product.
Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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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]\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-401\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.8\",\"versionEndExcluding\":\"5.10.110\",\"matchCriteriaId\":\"552AD555-63DB-4D57-BBAA-86EA26658508\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.33\",\"matchCriteriaId\":\"27C42AE8-B387-43E2-938A-E1C8B40BE6D5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.16.19\",\"matchCriteriaId\":\"20C43679-0439-405A-B97F-685BEE50613B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.17\",\"versionEndExcluding\":\"5.17.2\",\"matchCriteriaId\":\"210C679C-CF84-44A3-8939-E629C87E54BF\"}]}]}],\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
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\"lessThan\": \"3963a5d1ff75585bddf0c3a918566a6be09d7520\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"c73be61cede5882f9605a852414db559c0ebedfd\", \"lessThan\": \"375cd2536494cfbcdda84ae8b3e35bf19d0250b9\", \"status\": \"affected\", \"versionType\": \"git\"}, {\"version\": \"c73be61cede5882f9605a852414db559c0ebedfd\", \"lessThan\": \"b490207017ba237d97b735b2aa66dc241ccd18f5\", \"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/watch_queue.c\"], \"versions\": [{\"version\": \"5.8\", \"status\": \"affected\"}, {\"version\": \"0\", \"lessThan\": \"5.8\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.10.110\", \"lessThanOrEqual\": \"5.10.*\", \"status\": \"unaffected\", \"versionType\": \"semver\"}, {\"version\": \"5.15.33\", 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\"versionEndExcluding\": \"5.16.19\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.8\", \"versionEndExcluding\": \"5.17.2\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.8\", \"versionEndExcluding\": \"5.18\"}]}]}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/7169f60110915c8b53bffd43741fa020a75eb87a\"}, {\"url\": \"https://git.kernel.org/stable/c/4913daecd04addb41bc96a9175a885e1c19862a8\"}, {\"url\": \"https://git.kernel.org/stable/c/3963a5d1ff75585bddf0c3a918566a6be09d7520\"}, {\"url\": \"https://git.kernel.org/stable/c/375cd2536494cfbcdda84ae8b3e35bf19d0250b9\"}, {\"url\": \"https://git.kernel.org/stable/c/b490207017ba237d97b735b2aa66dc241ccd18f5\"}], \"title\": \"watch_queue: Free the page array when watch_queue is dismantled\", \"x_generator\": {\"engine\": \"bippy-1.2.0\"}}, \"adp\": [{\"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 5.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49148\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:47:50.624778Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401 Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"shortName\": \"CISA-ADP\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"dateUpdated\": \"2025-10-01T16:07:41.819Z\"}, \"title\": \"CISA ADP Vulnrichment\"}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49148\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"Linux\", \"dateReserved\": \"2025-02-26T01:49:39.273Z\", \"datePublished\": \"2025-02-26T01:55:15.872Z\", \"dateUpdated\": \"2025-05-04T08:31:00.333Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.