{"id":"CVE-2022-49870","summary":"capabilities: fix undefined behavior in bit shift for CAP_TO_MASK","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncapabilities: fix undefined behavior in bit shift for CAP_TO_MASK\n\nShifting signed 32-bit value by 31 bits is undefined, so changing\nsignificant bit to unsigned. The UBSAN warning calltrace like below:\n\nUBSAN: shift-out-of-bounds in security/commoncap.c:1252:2\nleft shift of 1 by 31 places cannot be represented in type 'int'\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x7d/0xa5\n dump_stack+0x15/0x1b\n ubsan_epilogue+0xe/0x4e\n __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c\n cap_task_prctl+0x561/0x6f0\n security_task_prctl+0x5a/0xb0\n __x64_sys_prctl+0x61/0x8f0\n do_syscall_64+0x58/0x80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n \u003c/TASK\u003e","modified":"2026-04-03T13:14:34.360107Z","published":"2025-05-01T14:10:21.134Z","related":["SUSE-SU-2025:01918-1","SUSE-SU-2025:01966-1","SUSE-SU-2025:01982-1","SUSE-SU-2025:01995-1","SUSE-SU-2025:02173-1","SUSE-SU-2025:02262-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49870.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586"},{"type":"WEB","url":"https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34"},{"type":"WEB","url":"https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49870.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49870"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e338d263a76af78fe8f38a72131188b58fceb591"},{"fixed":"5b79fa628e2ab789e629a83cd211ef9b4c1a593e"},{"fixed":"65b0bc7a0690861812ade523d19f82688ab819dc"},{"fixed":"dbaab08c8677d598244d21afb7818e44e1c5d826"},{"fixed":"5661f111a1616ac105ec8cec81bff99b60f847ac"},{"fixed":"fcbd2b336834bd24e1d9454ad5737856470c10d7"},{"fixed":"151dc8087b5609e53b069c068e3f3ee100efa586"},{"fixed":"27bdb134c043ff32c459d98f16550d0ffa0b3c34"},{"fixed":"46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49870.json"}}],"schema_version":"1.7.5"}