CVE - CVE-2022-49870

CVE-ID
CVE-2022-49870	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: capabilities: fix undefined behavior in bit shift for CAP_TO_MASK Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in security/commoncap.c:1252:2 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c cap_task_prctl+0x561/0x6f0 security_task_prctl+0x5a/0xb0 __x64_sys_prctl+0x61/0x8f0 do_syscall_64+0x58/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd </TASK>
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586 URL:https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586 MISC:https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34 URL:https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34 MISC:https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13 URL:https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13 MISC:https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac URL:https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac MISC:https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e URL:https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e MISC:https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc URL:https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc MISC:https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826 URL:https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826 MISC:https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7 URL:https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7
Assigning CNA
kernel.org
Date Record Created
20250501	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250501)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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