{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-49276", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49276", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-02-26T01:56:20.559Z", "updatedAt": "2026-05-11T18:56:33.715Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "jffs2: fix memory leak in jffs2_scan_medium", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_scan_medium\n\nIf an error is returned in jffs2_scan_eraseblock() and some memory\nhas been added to the jffs2_summary *s, we can observe the following\nkmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff88812b889c40 (size 64):\n comm \"mount\", pid 692, jiffies 4294838325 (age 34.288s)\n hex dump (first 32 bytes):\n 40 48 b5 14 81 88 ff ff 01 e0 31 00 00 00 50 00 @H........1...P.\n 00 00 01 00 00 00 01 00 00 00 02 00 00 00 09 08 ................\n backtrace:\n [] __kmalloc+0x613/0x910\n [] jffs2_sum_add_dirent_mem+0x5c/0xa0\n [] jffs2_scan_medium.cold+0x36e5/0x4794\n [] jffs2_do_mount_fs.cold+0xa7/0x2267\n [] jffs2_do_fill_super+0x383/0xc30\n [] jffs2_fill_super+0x2ea/0x4c0\n [] mtd_get_sb+0x254/0x400\n [] mtd_get_sb_by_nr+0x4f/0xd0\n [] get_tree_mtd+0x498/0x840\n [] jffs2_get_tree+0x25/0x30\n [] vfs_get_tree+0x8d/0x2e0\n [] path_mount+0x50f/0x1e50\n [] do_mount+0x107/0x130\n [] __se_sys_mount+0x1c5/0x2f0\n [] __x64_sys_mount+0xc7/0x160\n [] do_syscall_64+0x45/0x70\nunreferenced object 0xffff888114b54840 (size 32):\n comm \"mount\", pid 692, jiffies 4294838325 (age 34.288s)\n hex dump (first 32 bytes):\n c0 75 b5 14 81 88 ff ff 02 e0 02 00 00 00 02 00 .u..............\n 00 00 84 00 00 00 44 00 00 00 6b 6b 6b 6b 6b a5 ......D...kkkkk.\n backtrace:\n [] kmem_cache_alloc_trace+0x584/0x880\n [] jffs2_sum_add_inode_mem+0x54/0x90\n [] jffs2_scan_medium.cold+0x4481/0x4794\n [...]\nunreferenced object 0xffff888114b57280 (size 32):\n comm \"mount\", pid 692, jiffies 4294838393 (age 34.357s)\n hex dump (first 32 bytes):\n 10 d5 6c 11 81 88 ff ff 08 e0 05 00 00 00 01 00 ..l.............\n 00 00 38 02 00 00 28 00 00 00 6b 6b 6b 6b 6b a5 ..8...(...kkkkk.\n backtrace:\n [] kmem_cache_alloc_trace+0x584/0x880\n [] jffs2_sum_add_xattr_mem+0x54/0x90\n [] jffs2_scan_medium.cold+0x298c/0x4794\n [...]\nunreferenced object 0xffff8881116cd510 (size 16):\n comm \"mount\", pid 692, jiffies 4294838395 (age 34.355s)\n hex dump (first 16 bytes):\n 00 00 00 00 00 00 00 00 09 e0 60 02 00 00 6b a5 ..........`...k.\n backtrace:\n [] kmem_cache_alloc_trace+0x584/0x880\n [] jffs2_sum_add_xref_mem+0x54/0x90\n [] jffs2_scan_medium.cold+0x3a20/0x4794\n [...]\n--------------------------------------------\n\nTherefore, we should call jffs2_sum_reset_collected(s) on exit to\nrelease the memory added in s. In addition, a new tag \"out_buf\" is\nadded to prevent the NULL pointer reference caused by s being NULL.\n(thanks to Zhang Yi for this analysis)", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "9b0c69182f09b70779817af4dcf89780955d5c4c" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "b36bccb04e14cc0c1e2d0e92d477fe220314fad6" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "e711913463af916d777a4873068f415f1fe2ad33" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "455f4a23490bfcbedc8e5c245c463a59b19e5ddd" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "51dbb5e36d59f62e34d462b801c1068248149cfe" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "52ba0ab4f0a606f02a6163493378989faa1ec10a" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "b26bbc0c122cad038831f226a4cb4de702225e16" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "82462324bf35b6b553400af1c1aa265069cee28f" }, { "version": "e631ddba588783edd521c5a89f7b2902772fb691", "status": "affected", "versionType": "git", "lessThan": "9cdd3128874f5fe759e2c4e1360ab7fb96a8d1df" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.15", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.15" }, { "version": "4.9.311", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.9.*" }, { "version": "4.14.276", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.238", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.189", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.110", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.33", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.16.19", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.16.*" }, { "version": "5.17.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.17.*" }, { "version": "5.18", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }