{"id":"CVE-2022-49277","state":"PUBLISHED","title":"jffs2: fix memory leak in jffs2_do_mount_fs","description":"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    [<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880\n    [<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130\n    [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0\n    [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30\n    [<ffffffffa540c00a>] 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    [<ffffffffa493a449>] __kmalloc+0x6b9/0x910\n    [<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130\n    [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0\n    [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30\n    [<ffffffffa540c00a>] 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.","publishedAt":"2025-02-26T01:56:21.037Z","updatedAt":"2026-05-11T18:56:34.860Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"2a9d8184458562e6bf2f40d0e677fc85e2dd3834","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"9a0f6610c7daedd2eace430beeb08a8b7ac80699","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"dbe0d0521eaa6a3d235517319266c539bb5c5112","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"0978e9af4559a171ac7a74a1b3ef21804b0a0fa9","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"607d3aab7349f18e0d9dba4100d09d16fe27caca","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"4392e8aeebc5a4f8073620bccba7de1b1f6d7c88","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"5f34310d1376ca5b2ed798258def2c2ab3cc6699","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"c94128470e6fe53d9bd9d16d2d3271813f9d37af","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"d051cef784de4d54835f6b6836d98a8f6935772c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jffs2/build.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.15","versionType":"semver"},{"version":"4.9.311","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.276","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.238","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jffs2/build.c"]}],"references":["https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834","https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699","https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112","https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9","https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca","https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88","https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699","https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af","https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49277.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49277","state":"PUBLISHED","datePublished":"2025-02-26T01:56:21.037Z","dateUpdated":"2026-05-11T18:56:34.860Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:49:39.298Z"},"containers":{"cna":{"title":"jffs2: fix memory leak in jffs2_do_mount_fs","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    [<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880\n    [<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130\n    [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0\n    [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30\n    [<ffffffffa540c00a>] 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    [<ffffffffa493a449>] __kmalloc+0x6b9/0x910\n    [<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130\n    [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0\n    [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30\n    [<ffffffffa540c00a>] 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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"2a9d8184458562e6bf2f40d0e677fc85e2dd3834","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"9a0f6610c7daedd2eace430beeb08a8b7ac80699","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"dbe0d0521eaa6a3d235517319266c539bb5c5112","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"0978e9af4559a171ac7a74a1b3ef21804b0a0fa9","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"607d3aab7349f18e0d9dba4100d09d16fe27caca","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"4392e8aeebc5a4f8073620bccba7de1b1f6d7c88","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"5f34310d1376ca5b2ed798258def2c2ab3cc6699","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"c94128470e6fe53d9bd9d16d2d3271813f9d37af","versionType":"git"},{"version":"e631ddba588783edd521c5a89f7b2902772fb691","status":"affected","lessThan":"d051cef784de4d54835f6b6836d98a8f6935772c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jffs2/build.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.15","versionType":"semver"},{"version":"4.9.311","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.276","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.238","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.189","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.110","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/jffs2/build.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:56:34.860Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"4.9.311"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"4.14.276"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"4.19.238"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"5.4.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"5.10.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"5.15.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"5.16.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"5.17.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.15","versionEndExcluding":"5.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","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-2022-49277","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:45:30.429397Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","lang":"en","type":"CWE","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:47:01.249Z"}}]}}}