CVE-2023-52995

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52995
In the Linux kernel, the following vulnerability has been resolved: riscv/kprobe: Fix instruction simulation of JALR Set kprobe at 'jalr 1140(ra)' of vfs_write results in the following crash: [ 32.092235] Unable to handle kernel access to user memory without uaccess routines at virtual address 00aaaaaad77b1170 [ 32.093115] Oops [#1] [ 32.093251] Modules linked in: [ 32.093626] CPU: 0 PID: 135 Comm: ftracetest Not tainted 6.2.0-rc2-00013-gb0aa5e5df0cb-dirty #16 [ 32.093985] Hardware name: riscv-virtio,qemu (DT) [ 32.094280] epc : ksys_read+0x88/0xd6 [ 32.094855] ra : ksys_read+0xc0/0xd6 [ 32.095016] epc : ffffffff801cda80 ra : ffffffff801cdab8 sp : ff20000000d7bdc0 [ 32.095227] gp : ffffffff80f14000 tp : ff60000080f9cb40 t0 : ffffffff80f13e80 [ 32.095500] t1 : ffffffff8000c29c t2 : ffffffff800dbc54 s0 : ff20000000d7be60 [ 32.095716] s1 : 0000000000000000 a0 : ffffffff805a64ae a1 : ffffffff80a83708 [ 32.095921] a2 : ffffffff80f160a0 a3 : 0000000000000000 a4 : f229b0afdb165300 [ 32.096171] a5 : f229b0afdb165300 a6 : ffffffff80eeebd0 a7 : 00000000000003ff [ 32.096411] s2 : ff6000007ff76800 s3 : fffffffffffffff7 s4 : 00aaaaaad77b1170 [ 32.096638] s5 : ffffffff80f160a0 s6 : ff6000007ff76800 s7 : 0000000000000030 [ 32.096865] s8 : 00ffffffc3d97be0 s9 : 0000000000000007 s10: 00aaaaaad77c9410 [ 32.097092] s11: 0000000000000000 t3 : ffffffff80f13e48 t4 : ffffffff8000c29c [ 32.097317] t5 : ffffffff8000c29c t6 : ffffffff800dbc54 [ 32.097505] status: 0000000200000120 badaddr: 00aaaaaad77b1170 cause: 000000000000000d [ 32.098011] [<ffffffff801cdb72>] ksys_write+0x6c/0xd6 [ 32.098222] [<ffffffff801cdc06>] sys_write+0x2a/0x38 [ 32.098405] [<ffffffff80003c76>] ret_from_syscall+0x0/0x2 Since the rs1 and rd might be the same one, such as 'jalr 1140(ra)', hence it requires obtaining the target address from rs1 followed by updating rd. [Palmer: Pick Guo's cleanup]

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/614471b7f7cd28a2c96ab9c90b37471c82258ffb Patch
https://git.kernel.org/stable/c/ca0254998be4d74cf6add70ccfab0d2dbd362a10 Patch
https://git.kernel.org/stable/c/f4c8fc775fcbc9e9047b22671c55ca18f9a127d4 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:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*
History

29 Oct 2025, 16:59

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CWE NVD-CWE-noinfo
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/614471b7f7cd28a2c96ab9c90b37471c82258ffb - () https://git.kernel.org/stable/c/614471b7f7cd28a2c96ab9c90b37471c82258ffb - Patch
References () https://git.kernel.org/stable/c/ca0254998be4d74cf6add70ccfab0d2dbd362a10 - () https://git.kernel.org/stable/c/ca0254998be4d74cf6add70ccfab0d2dbd362a10 - Patch
References () https://git.kernel.org/stable/c/f4c8fc775fcbc9e9047b22671c55ca18f9a127d4 - () https://git.kernel.org/stable/c/f4c8fc775fcbc9e9047b22671c55ca18f9a127d4 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: riscv/kprobe: Se corrige la simulación de instrucción de JALR. Establecer kprobe en 'jalr 1140(ra)' de vfs_write da como resultado el siguiente fallo: [32.092235] No se puede controlar el acceso del kernel a la memoria del usuario sin rutinas uaccess en la dirección virtual 00aaaaaad77b1170 [32.093115] Ups [#1] [32.093251] Módulos vinculados en: [32.093626] CPU: 0 PID: 135 Comm: ftracetest No contaminado 6.2.0-rc2-00013-gb0aa5e5df0cb-dirty #16 [32.093985] Nombre del hardware: riscv-virtio,qemu (DT) [ [32.094280] epc : ksys_read+0x88/0xd6 [ 32.094855] ra : ksys_read+0xc0/0xd6 [ 32.095016] epc : ffffffff801cda80 ra : ffffffff801cdab8 sp : ff20000000d7bdc0 [ 32.095227] gp : ffffffff80f14000 tp : ff60000080f9cb40 t0 : ffffffff80f13e80 [ 32.095500] t1 : ffffffff8000c29c t2 : ffffffff800dbc54 s0 : ff20000000d7be60 [32.095716] s1: 0000000000000000 a0: ffffffff805a64ae a1: ffffffff80a83708 [32.095921] a2: ffffffff80f160a0 a3: 0000000000000000 a4: f229b0afdb165300 [32.096171] a5: f229b0afdb165300 a6: ffffffff80eeebd0 a7: 00000000000003ff [32.096411] s2: ff6000007ff76800 s3: ffffffffffffff7 s4: 00aaaaaad77b1170 [32.096638] s5: ffffffff80f160a0 s6: ff6000007ff76800 s7: 00000000000000030 [32.096865] s8: 00ffffffc3d97be0 s9: 0000000000000007 s10: 00aaaaaad77c9410 [32.097092] s11: 0000000000000000 t3: ffffffff80f13e48 t4 : ffffffff8000c29c [ 32.097317] t5 : ffffffff8000c29c t6 : ffffffff800dbc54 [ 32.097505] estado: 0000000200000120 dirección incorrecta: 00aaaaaad77b1170 causa: 000000000000000d [ 32.098011] [] ksys_write+0x6c/0xd6 [ 32.098222] [] sys_write+0x2a/0x38 [ 32.098405] [] ret_from_syscall+0x0/0x2 Dado que rs1 y rd podrían ser el mismo, como 'jalr 1140(ra)', se requiere obtener la dirección de destino de rs1 y luego actualizar rd. [Palmer: Limpieza de Pick Guo]
CPE cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.2:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

27 Mar 2025, 17:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-03-27 17:15

Updated : 2025-10-29 16:59

NVD link : CVE-2023-52995

Mitre link : CVE-2023-52995

CVE.ORG link : CVE-2023-52995

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo