CVE-2022-49870

HIGH

MEDIUM Priority: 0.02 BB Relevance: 39/100

Published: 2025-05-01 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: High

I: None

A: High

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>

Weakness Classification (1)

CWE-125

Affected Software (14)

Vendor	Product	Version
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < 5b79fa628e2ab789e629a83cd211ef9b4c1a593e
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < 65b0bc7a0690861812ade523d19f82688ab819dc
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < dbaab08c8677d598244d21afb7818e44e1c5d826
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < 5661f111a1616ac105ec8cec81bff99b60f847ac
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < fcbd2b336834bd24e1d9454ad5737856470c10d7
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < 151dc8087b5609e53b069c068e3f3ee100efa586
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < 27bdb134c043ff32c459d98f16550d0ffa0b3c34
Linux	Linux	e338d263a76af78fe8f38a72131188b58fceb591 < 46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13
Linux	Linux	2.6.25
linux	linux_kernel	2.6.25 – 4.9.334
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1
linux	linux_kernel	6.1