{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50864", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:07.135Z", "datePublished": "2025-12-30T12:15:36.489Z", "dateUpdated": "2026-01-02T15:05:03.940Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-02T15:05:03.940Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix shift-out-of-bounds due to too large exponent of block size\n\nIf field s_log_block_size of superblock data is corrupted and too large,\ninit_nilfs() and load_nilfs() still can trigger a shift-out-of-bounds\nwarning followed by a kernel panic (if panic_on_warn is set):\n\n shift exponent 38973 is too large for 32-bit type 'int'\n Call Trace:\n <TASK>\n dump_stack_lvl+0xcd/0x134\n ubsan_epilogue+0xb/0x50\n __ubsan_handle_shift_out_of_bounds.cold.12+0x17b/0x1f5\n init_nilfs.cold.11+0x18/0x1d [nilfs2]\n nilfs_mount+0x9b5/0x12b0 [nilfs2]\n ...\n\nThis fixes the issue by adding and using a new helper function for getting\nblock size with sanity check."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/nilfs2/the_nilfs.c"], "versions": [{"version": "8a9d2191e9f43bbcd256a9a6871bd73434c83f2f", "lessThan": "ec93b5430ec0f60877a5388bb023d60624f9ab9f", "status": "affected", "versionType": "git"}, {"version": "8a9d2191e9f43bbcd256a9a6871bd73434c83f2f", "lessThan": "8b6ef451b5701b37d9a5905534595776a662edfc", "status": "affected", "versionType": "git"}, {"version": "8a9d2191e9f43bbcd256a9a6871bd73434c83f2f", "lessThan": "ddb6615a168f97b91175e00eda4c644741cf531c", "status": "affected", "versionType": "git"}, {"version": "8a9d2191e9f43bbcd256a9a6871bd73434c83f2f", "lessThan": "a16731fa1b96226c75bbf18e73513b14fc318360", "status": "affected", "versionType": "git"}, {"version": "8a9d2191e9f43bbcd256a9a6871bd73434c83f2f", "lessThan": "ebeccaaef67a4895d2496ab8d9c2fb8d89201211", "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/nilfs2/the_nilfs.c"], "versions": [{"version": "2.6.30", "status": "affected"}, {"version": "0", "lessThan": "2.6.30", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "2.6.30", "versionEndExcluding": "5.10.163"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "5.15.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.0.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.30", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ec93b5430ec0f60877a5388bb023d60624f9ab9f"}, {"url": "https://git.kernel.org/stable/c/8b6ef451b5701b37d9a5905534595776a662edfc"}, {"url": "https://git.kernel.org/stable/c/ddb6615a168f97b91175e00eda4c644741cf531c"}, {"url": "https://git.kernel.org/stable/c/a16731fa1b96226c75bbf18e73513b14fc318360"}, {"url": "https://git.kernel.org/stable/c/ebeccaaef67a4895d2496ab8d9c2fb8d89201211"}], "title": "nilfs2: fix shift-out-of-bounds due to too large exponent of block size", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix shift-out-of-bounds due to too large exponent of block size\n\nIf field s_log_block_size of superblock data is corrupted and too large,\ninit_nilfs() and load_nilfs() still can trigger a shift-out-of-bounds\nwarning followed by a kernel panic (if panic_on_warn is set):\n\n shift exponent 38973 is too large for 32-bit type 'int'\n Call Trace:\n <TASK>\n dump_stack_lvl+0xcd/0x134\n ubsan_epilogue+0xb/0x50\n __ubsan_handle_shift_out_of_bounds.cold.12+0x17b/0x1f5\n init_nilfs.cold.11+0x18/0x1d [nilfs2]\n nilfs_mount+0x9b5/0x12b0 [nilfs2]\n ...\n\nThis fixes the issue by adding and using a new helper function for getting\nblock size with sanity check."}], "id": "CVE-2022-50864", "lastModified": "2025-12-31T20:43:05.160", "metrics": {}, "published": "2025-12-30T13:16:01.207", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8b6ef451b5701b37d9a5905534595776a662edfc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a16731fa1b96226c75bbf18e73513b14fc318360"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ddb6615a168f97b91175e00eda4c644741cf531c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ebeccaaef67a4895d2496ab8d9c2fb8d89201211"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ec93b5430ec0f60877a5388bb023d60624f9ab9f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: nilfs2: fix shift-out-of-bounds due to too large exponent of block size", "id": "2426071", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426071"}, "csaw": false, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnilfs2: fix shift-out-of-bounds due to too large exponent of block size\nIf field s_log_block_size of superblock data is corrupted and too large,\ninit_nilfs() and load_nilfs() still can trigger a shift-out-of-bounds\nwarning followed by a kernel panic (if panic_on_warn is set):\nshift exponent 38973 is too large for 32-bit type 'int'\nCall Trace:\n<TASK>\ndump_stack_lvl+0xcd/0x134\nubsan_epilogue+0xb/0x50\n__ubsan_handle_shift_out_of_bounds.cold.12+0x17b/0x1f5\ninit_nilfs.cold.11+0x18/0x1d [nilfs2]\nnilfs_mount+0x9b5/0x12b0 [nilfs2]\n...\nThis fixes the issue by adding and using a new helper function for getting\nblock size with sanity check."], "name": "CVE-2022-50864", "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": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50864\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50864\nhttps://lore.kernel.org/linux-cve-announce/2025123049-CVE-2022-50864-6bcd@gregkh/T"]}

{}