CVE-2022-49277 (GCVE-0-2022-49277)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2025-10-01 19:47
VLAI?
Title
jffs2: fix memory leak in jffs2_do_mount_fs
Summary
In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_mount_fs If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff88811b25a640 (size 64): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 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: [<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880 [<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] unreferenced object 0xffff88812c760000 (size 65536): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [<ffffffffa493a449>] __kmalloc+0x6b9/0x910 [<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] -------------------------------------------- This is because the resources allocated in jffs2_sum_init() are not released. Call jffs2_sum_exit() to release these resources to solve the problem.
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: e631ddba588783edd521c5a89f7b2902772fb691 , < 2a9d8184458562e6bf2f40d0e677fc85e2dd3834 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 9a0f6610c7daedd2eace430beeb08a8b7ac80699 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < dbe0d0521eaa6a3d235517319266c539bb5c5112 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 0978e9af4559a171ac7a74a1b3ef21804b0a0fa9 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 607d3aab7349f18e0d9dba4100d09d16fe27caca (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 4392e8aeebc5a4f8073620bccba7de1b1f6d7c88 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 5f34310d1376ca5b2ed798258def2c2ab3cc6699 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < c94128470e6fe53d9bd9d16d2d3271813f9d37af (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < d051cef784de4d54835f6b6836d98a8f6935772c (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.15
Unaffected: 0 , < 2.6.15 (semver)
Unaffected: 4.9.311 , ≤ 4.9.* (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (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)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_do_mount_fs\n\nIf jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error,\nwe can observe the following kmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff88811b25a640 (size 64):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 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    [\u003cffffffffa493be24\u003e] kmem_cache_alloc_trace+0x584/0x880\n    [\u003cffffffffa5423a06\u003e] jffs2_sum_init+0x86/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\n    [...]\nunreferenced object 0xffff88812c760000 (size 65536):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\n  hex dump (first 32 bytes):\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n  backtrace:\n    [\u003cffffffffa493a449\u003e] __kmalloc+0x6b9/0x910\n    [\u003cffffffffa5423a57\u003e] jffs2_sum_init+0xd7/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\n    [...]\n--------------------------------------------\n\nThis is because the resources allocated in jffs2_sum_init() are not\nreleased. Call jffs2_sum_exit() to release these resources to solve\nthe problem."
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49277",
    "datePublished": "2025-02-26T01:56:21.037Z",
    "dateReserved": "2025-02-26T01:49:39.298Z",
    "dateUpdated": "2025-10-01T19:47:01.249Z",
    "state": "PUBLISHED"
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\"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.15\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.15\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.9.311\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.9.*\"}, {\"status\": \"unaffected\", \"version\": \"4.14.276\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.14.*\"}, {\"status\": \"unaffected\", \"version\": \"4.19.238\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.189\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.16.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.16.*\"}, {\"status\": \"unaffected\", \"version\": \"5.17.2\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.17.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"fs/jffs2/build.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834\"}, {\"url\": \"https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699\"}, {\"url\": \"https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112\"}, {\"url\": \"https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9\"}, {\"url\": \"https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca\"}, {\"url\": \"https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88\"}, {\"url\": \"https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699\"}, {\"url\": \"https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af\"}, {\"url\": \"https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\njffs2: fix memory leak in jffs2_do_mount_fs\\n\\nIf jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error,\\nwe can observe the following kmemleak report:\\n\\n--------------------------------------------\\nunreferenced object 0xffff88811b25a640 (size 64):\\n  comm \\\"mount\\\", pid 691, jiffies 4294957728 (age 71.952s)\\n  hex dump (first 32 bytes):\\n    00 00 00 00 00 00 00 00 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    [\u003cffffffffa493be24\u003e] kmem_cache_alloc_trace+0x584/0x880\\n    [\u003cffffffffa5423a06\u003e] jffs2_sum_init+0x86/0x130\\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\\n    [...]\\nunreferenced object 0xffff88812c760000 (size 65536):\\n  comm \\\"mount\\\", pid 691, jiffies 4294957728 (age 71.952s)\\n  hex dump (first 32 bytes):\\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\\n  backtrace:\\n    [\u003cffffffffa493a449\u003e] __kmalloc+0x6b9/0x910\\n    [\u003cffffffffa5423a57\u003e] jffs2_sum_init+0xd7/0x130\\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\\n    [...]\\n--------------------------------------------\\n\\nThis is because the resources allocated in jffs2_sum_init() are not\\nreleased. Call jffs2_sum_exit() to release these resources to solve\\nthe problem.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.311\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.276\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.238\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.189\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.110\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.33\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.16.19\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.17.2\", \"versionStartIncluding\": \"2.6.15\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18\", \"versionStartIncluding\": \"2.6.15\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T08:34:00.836Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49277\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T19:47:01.249Z\", \"dateReserved\": \"2025-02-26T01:49:39.298Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T01:56:21.037Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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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.