{"id":"CVE-2022-50497","title":"binfmt_misc: fix shift-out-of-bounds in check_special_flags","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbinfmt_misc: fix shift-out-of-bounds in check_special_flags\n\nUBSAN reported a shift-out-of-bounds warning:\n\n left shift of 1 by 31 places cannot be represented in type …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0f1a48994b3e516d5c7fd5d12204fdba7a604771","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ea6145370be8016755c43aca799815fc4b8c88b1","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 97382a2639b1cd9631f6069061e9d7062cd2b098","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 419b808504c26b3e3342365f34ccd0843e09a7f8","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < dcbc51d31d0afbd45e830e3cf565a7b3ca7bf0d8","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 88cea1676a09f7c45a1438153a126610c33b1590","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a651bb5ff997b9f02662bcdef3d8b4e6f0d79656","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a91123d4bda463469f68f0427adabf8108001f94","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6a46bf558803dd2b959ca7435a5c143efe837217","Linux 2.6.12"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:12:21.226990Z"},"published":"2025-10-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:20:49.239Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-50497","references":[{"url":"https://git.kernel.org/stable/c/0f1a48994b3e516d5c7fd5d12204fdba7a604771"},{"url":"https://git.kernel.org/stable/c/ea6145370be8016755c43aca799815fc4b8c88b1"},{"url":"https://git.kernel.org/stable/c/97382a2639b1cd9631f6069061e9d7062cd2b098"},{"url":"https://git.kernel.org/stable/c/419b808504c26b3e3342365f34ccd0843e09a7f8"},{"url":"https://git.kernel.org/stable/c/dcbc51d31d0afbd45e830e3cf565a7b3ca7bf0d8"},{"url":"https://git.kernel.org/stable/c/88cea1676a09f7c45a1438153a126610c33b1590"},{"url":"https://git.kernel.org/stable/c/a651bb5ff997b9f02662bcdef3d8b4e6f0d79656"},{"url":"https://git.kernel.org/stable/c/a91123d4bda463469f68f0427adabf8108001f94"},{"url":"https://git.kernel.org/stable/c/6a46bf558803dd2b959ca7435a5c143efe837217"}],"tags":["cve.org"],"epss":0.00167,"epssPercentile":0.05964,"ingestedAt":"2026-11-05T22:38:31.744Z","slug":"CVE-2022-50497","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbinfmt_misc: fix shift-out-of-bounds in check_special_flags\n\nUBSAN reported a shift-out-of-bounds warning:\n\n left shift of 1 by 31 places cannot be represented in type 'int'\n Call Trace:\n  <TASK>\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106\n  ubsan_epilogue+0xa/0x44 lib/ubsan.c:151\n  __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322\n  check_special_flags fs/binfmt_misc.c:241 [inline]\n  create_entry fs/binfmt_misc.c:456 [inline]\n  bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654\n  vfs_write+0x11e/0x580 fs/read_write.c:582\n  ksys_write+0xcf/0x120 fs/read_write.c:637\n  do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n  do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n RIP: 0033:0x4194e1\n\nSince the type of Node's flags is unsigned long, we should define these\nmacros with same type too.\n\n## Affected\n\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0f1a48994b3e516d5c7fd5d12204fdba7a604771`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ea6145370be8016755c43aca799815fc4b8c88b1`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 97382a2639b1cd9631f6069061e9d7062cd2b098`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 419b808504c26b3e3342365f34ccd0843e09a7f8`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < dcbc51d31d0afbd45e830e3cf565a7b3ca7bf0d8`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 88cea1676a09f7c45a1438153a126610c33b1590`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a651bb5ff997b9f02662bcdef3d8b4e6f0d79656`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a91123d4bda463469f68f0427adabf8108001f94`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6a46bf558803dd2b959ca7435a5c143efe837217`\n- `Linux 2.6.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}