CVE-2022-49870

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-49870
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>

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586 Patch
https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34 Patch
https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13 Patch
https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac Patch
https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e Patch
https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc Patch
https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826 Patch
https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
History

10 Nov 2025, 21:04

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586 - () https://git.kernel.org/stable/c/151dc8087b5609e53b069c068e3f3ee100efa586 - Patch
References () https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34 - () https://git.kernel.org/stable/c/27bdb134c043ff32c459d98f16550d0ffa0b3c34 - Patch
References () https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13 - () https://git.kernel.org/stable/c/46653972e3ea64f79e7f8ae3aa41a4d3fdb70a13 - Patch
References () https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac - () https://git.kernel.org/stable/c/5661f111a1616ac105ec8cec81bff99b60f847ac - Patch
References () https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e - () https://git.kernel.org/stable/c/5b79fa628e2ab789e629a83cd211ef9b4c1a593e - Patch
References () https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc - () https://git.kernel.org/stable/c/65b0bc7a0690861812ade523d19f82688ab819dc - Patch
References () https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826 - () https://git.kernel.org/stable/c/dbaab08c8677d598244d21afb7818e44e1c5d826 - Patch
References () https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7 - () https://git.kernel.org/stable/c/fcbd2b336834bd24e1d9454ad5737856470c10d7 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1
First Time Linux
Linux linux Kernel
CWE CWE-125
CPE cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*

02 May 2025, 13:52

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: capacidades: corregir comportamiento indefinido en el cambio de bits para CAP_TO_MASK El cambio de un valor con signo de 32 bits por 31 bits no está definido, por lo que se cambia el bit significativo a sin signo. El seguimiento de llamadas de advertencia de UBSAN como se muestra a continuación: UBSAN: desplazamiento fuera de los límites en security/commoncap.c:1252:2 El desplazamiento a la izquierda de 1 por 31 lugares no se puede representar en el tipo 'int' Seguimiento de llamadas: 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

01 May 2025, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-01 15:16

Updated : 2025-11-10 21:04

NVD link : CVE-2022-49870

Mitre link : CVE-2022-49870

CVE.ORG link : CVE-2022-49870

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read