CVE-2022-50009

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50009", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.388Z", "datePublished": "2025-06-18T11:01:14.219Z", "dateUpdated": "2026-08-15T12:23:04.458Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T12:23:04.458Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix null-ptr-deref in f2fs_get_dnode_of_data\n\nThere is issue as follows when test f2fs atomic write:\nF2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock\nF2FS-fs (loop0): invalid crc_offset: 0\nF2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=1, run fsck to fix.\nF2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix.\n==================================================================\nBUG: KASAN: null-ptr-deref in f2fs_get_dnode_of_data+0xac/0x16d0\nRead of size 8 at addr 0000000000000028 by task rep/1990\n\nCPU: 4 PID: 1990 Comm: rep Not tainted 5.19.0-rc6-next-20220715 #266\nCall Trace:\n <TASK>\n dump_stack_lvl+0x6e/0x91\n print_report.cold+0x49a/0x6bb\n kasan_report+0xa8/0x130\n f2fs_get_dnode_of_data+0xac/0x16d0\n f2fs_do_write_data_page+0x2a5/0x1030\n move_data_page+0x3c5/0xdf0\n do_garbage_collect+0x2015/0x36c0\n f2fs_gc+0x554/0x1d30\n f2fs_balance_fs+0x7f5/0xda0\n f2fs_write_single_data_page+0xb66/0xdc0\n f2fs_write_cache_pages+0x716/0x1420\n f2fs_write_data_pages+0x84f/0x9a0\n do_writepages+0x130/0x3a0\n filemap_fdatawrite_wbc+0x87/0xa0\n file_write_and_wait_range+0x157/0x1c0\n f2fs_do_sync_file+0x206/0x12d0\n f2fs_sync_file+0x99/0xc0\n vfs_fsync_range+0x75/0x140\n f2fs_file_write_iter+0xd7b/0x1850\n vfs_write+0x645/0x780\n ksys_write+0xf1/0x1e0\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nAs 3db1de0e582c commit changed atomic write way which new a cow_inode for\natomic write file, and also mark cow_inode as FI_ATOMIC_FILE.\nWhen f2fs_do_write_data_page write cow_inode will use cow_inode's cow_inode\nwhich is NULL. Then will trigger null-ptr-deref.\nTo solve above issue, introduce FI_COW_FILE flag for COW inode.\n\nFiexes: 3db1de0e582c(\"f2fs: change the current atomic write way\")"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/f2fs/f2fs.h", "fs/f2fs/file.c", "fs/f2fs/segment.c"], "versions": [{"version": "6db52f1944417c2601182a591a704e2f119c5215", "lessThan": "0f63e33eca6fa29a11c76fa31db5fe1cada5ad6e", "status": "affected", "versionType": "git"}, {"version": "3db1de0e582c358dd013f3703cd55b5fe4076436", "lessThan": "7000ad53ec1b17bd2fac76984b7b0c663755cbb7", "status": "affected", "versionType": "git"}, {"version": "3db1de0e582c358dd013f3703cd55b5fe4076436", "lessThan": "4a2c5b7994960fac29cf8a3f4e62855bae1b27d4", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/f2fs/f2fs.h", "fs/f2fs/file.c", "fs/f2fs/segment.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.4", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "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": "5.19", "versionEndExcluding": "5.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0f63e33eca6fa29a11c76fa31db5fe1cada5ad6e"}, {"url": "https://git.kernel.org/stable/c/7000ad53ec1b17bd2fac76984b7b0c663755cbb7"}, {"url": "https://git.kernel.org/stable/c/4a2c5b7994960fac29cf8a3f4e62855bae1b27d4"}], "title": "f2fs: fix null-ptr-deref in f2fs_get_dnode_of_data", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/f2fs/f2fs.h", "fs/f2fs/file.c", "fs/f2fs/segment.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0f63e33eca6fa29a11c76fa31db5fe1cada5ad6e", "status": "affected", "version": "6db52f1944417c2601182a591a704e2f119c5215", "versionType": "git"}, {"lessThan": "7000ad53ec1b17bd2fac76984b7b0c663755cbb7", "status": "affected", "version": "3db1de0e582c358dd013f3703cd55b5fe4076436", "versionType": "git"}, {"lessThan": "4a2c5b7994960fac29cf8a3f4e62855bae1b27d4", "status": "affected", "version": "3db1de0e582c358dd013f3703cd55b5fe4076436", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/f2fs/f2fs.h", "fs/f2fs/file.c", "fs/f2fs/segment.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"lessThan": "5.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.19.*", "status": "unaffected", "version": "5.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0362AE22-8381-4662-AD22-2D57E7281916", "versionEndExcluding": "5.18.18", "versionStartIncluding": "3.8", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6B05B3A7-DED2-4B21-94AE-AE1F779C2A3D", "versionEndExcluding": "5.19.4", "versionStartIncluding": "5.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: fix null-ptr-deref in f2fs_get_dnode_of_data\n\nThere is issue as follows when test f2fs atomic write:\nF2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock\nF2FS-fs (loop0): invalid crc_offset: 0\nF2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=1, run fsck to fix.\nF2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix.\n==================================================================\nBUG: KASAN: null-ptr-deref in f2fs_get_dnode_of_data+0xac/0x16d0\nRead of size 8 at addr 0000000000000028 by task rep/1990\n\nCPU: 4 PID: 1990 Comm: rep Not tainted 5.19.0-rc6-next-20220715 #266\nCall Trace:\n <TASK>\n dump_stack_lvl+0x6e/0x91\n print_report.cold+0x49a/0x6bb\n kasan_report+0xa8/0x130\n f2fs_get_dnode_of_data+0xac/0x16d0\n f2fs_do_write_data_page+0x2a5/0x1030\n move_data_page+0x3c5/0xdf0\n do_garbage_collect+0x2015/0x36c0\n f2fs_gc+0x554/0x1d30\n f2fs_balance_fs+0x7f5/0xda0\n f2fs_write_single_data_page+0xb66/0xdc0\n f2fs_write_cache_pages+0x716/0x1420\n f2fs_write_data_pages+0x84f/0x9a0\n do_writepages+0x130/0x3a0\n filemap_fdatawrite_wbc+0x87/0xa0\n file_write_and_wait_range+0x157/0x1c0\n f2fs_do_sync_file+0x206/0x12d0\n f2fs_sync_file+0x99/0xc0\n vfs_fsync_range+0x75/0x140\n f2fs_file_write_iter+0xd7b/0x1850\n vfs_write+0x645/0x780\n ksys_write+0xf1/0x1e0\n do_syscall_64+0x3b/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nAs 3db1de0e582c commit changed atomic write way which new a cow_inode for\natomic write file, and also mark cow_inode as FI_ATOMIC_FILE.\nWhen f2fs_do_write_data_page write cow_inode will use cow_inode's cow_inode\nwhich is NULL. Then will trigger null-ptr-deref.\nTo solve above issue, introduce FI_COW_FILE flag for COW inode.\n\nFiexes: 3db1de0e582c(\"f2fs: change the current atomic write way\")"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: corrige null-ptr-deref en f2fs_get_dnode_of_data Hay un problema como el siguiente cuando se prueba la escritura at\u00f3mica de f2fs: F2FS-fs (loop0): No se puede encontrar un sistema de archivos F2FS v\u00e1lido en el 2.\u00ba superbloque F2FS-fs (loop0): crc_offset no v\u00e1lido: 0 F2FS-fs (loop0): f2fs_check_nid_range: nid fuera de rango = 1, ejecute fsck para corregirlo. F2FS-fs (loop0): f2fs_check_nid_range: nid fuera de rango = 2, ejecute fsck para corregirlo. ======================================================================= ERROR: KASAN: null-ptr-deref en f2fs_get_dnode_of_data+0xac/0x16d0 Lectura de tama\u00f1o 8 en la direcci\u00f3n 000000000000028 por la tarea rep/1990 CPU: 4 PID: 1990 Comm: rep No contaminado 5.19.0-rc6-next-20220715 #266 Rastreo de llamadas: dump_stack_lvl+0x6e/0x91 print_report.cold+0x49a/0x6bb kasan_report+0xa8/0x130 f2fs_get_dnode_of_data+0xac/0x16d0 f2fs_do_write_data_page+0x2a5/0x1030 move_data_page+0x3c5/0xdf0 do_garbage_collect+0x2015/0x36c0 f2fs_gc+0x554/0x1d30 f2fs_balance_fs+0x7f5/0xda0 f2fs_write_single_data_page+0xb66/0xdc0 f2fs_write_cache_pages+0x716/0x1420 f2fs_write_data_pages+0x84f/0x9a0 do_writepages+0x130/0x3a0 filemap_fdatawrite_wbc+0x87/0xa0 file_write_and_wait_range+0x157/0x1c0 f2fs_do_sync_file+0x206/0x12d0 f2fs_sync_file+0x99/0xc0 vfs_fsync_range+0x75/0x140 f2fs_file_write_iter+0xd7b/0x1850 vfs_write+0x645/0x780 ksys_write+0xf1/0x1e0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Como el commit 3db1de0e582c cambi\u00f3 la forma de escritura at\u00f3mica que ahora es un cow_inode para el archivo de escritura at\u00f3mica, y tambi\u00e9n marca cow_inode como FI_ATOMIC_FILE. Al escribir en f2fs_do_write_data_page, cow_inode usar\u00e1 el valor nulo de cow_inode. Esto activar\u00e1 null-ptr-deref. Para solucionar el problema, introduzca el indicador FI_COW_FILE para el inodo COW. Fiexes: 3db1de0e582c(\"f2fs: cambiar la ruta de escritura at\u00f3mica actual\")"}], "id": "CVE-2022-50009", "lastModified": "2026-08-15T13:17:29.753", "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": "2025-06-18T11:15:28.857", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0f63e33eca6fa29a11c76fa31db5fe1cada5ad6e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4a2c5b7994960fac29cf8a3f4e62855bae1b27d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7000ad53ec1b17bd2fac76984b7b0c663755cbb7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: f2fs: fix null-ptr-deref in f2fs_get_dnode_of_data", "id": "2373650", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373650"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nf2fs: fix null-ptr-deref in f2fs_get_dnode_of_data\nThere is issue as follows when test f2fs atomic write:\nF2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock\nF2FS-fs (loop0): invalid crc_offset: 0\nF2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=1, run fsck to fix.\nF2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=2, run fsck to fix.\n==================================================================\nBUG: KASAN: null-ptr-deref in f2fs_get_dnode_of_data+0xac/0x16d0\nRead of size 8 at addr 0000000000000028 by task rep/1990\nCPU: 4 PID: 1990 Comm: rep Not tainted 5.19.0-rc6-next-20220715 #266\nCall Trace:\n<TASK>\ndump_stack_lvl+0x6e/0x91\nprint_report.cold+0x49a/0x6bb\nkasan_report+0xa8/0x130\nf2fs_get_dnode_of_data+0xac/0x16d0\nf2fs_do_write_data_page+0x2a5/0x1030\nmove_data_page+0x3c5/0xdf0\ndo_garbage_collect+0x2015/0x36c0\nf2fs_gc+0x554/0x1d30\nf2fs_balance_fs+0x7f5/0xda0\nf2fs_write_single_data_page+0xb66/0xdc0\nf2fs_write_cache_pages+0x716/0x1420\nf2fs_write_data_pages+0x84f/0x9a0\ndo_writepages+0x130/0x3a0\nfilemap_fdatawrite_wbc+0x87/0xa0\nfile_write_and_wait_range+0x157/0x1c0\nf2fs_do_sync_file+0x206/0x12d0\nf2fs_sync_file+0x99/0xc0\nvfs_fsync_range+0x75/0x140\nf2fs_file_write_iter+0xd7b/0x1850\nvfs_write+0x645/0x780\nksys_write+0xf1/0x1e0\ndo_syscall_64+0x3b/0x90\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\nAs 3db1de0e582c commit changed atomic write way which new a cow_inode for\natomic write file, and also mark cow_inode as FI_ATOMIC_FILE.\nWhen f2fs_do_write_data_page write cow_inode will use cow_inode's cow_inode\nwhich is NULL. Then will trigger null-ptr-deref.\nTo solve above issue, introduce FI_COW_FILE flag for COW inode.\nFiexes: 3db1de0e582c(\"f2fs: change the current atomic write way\")"], "name": "CVE-2022-50009", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50009\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50009\nhttps://lore.kernel.org/linux-cve-announce/2025061831-CVE-2022-50009-214a@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-06-23T08:45:30.109342+00:00", "updated": "2025-06-23T08:45:30.109406+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}