CVE-2024-50165

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve param->string when parsing mount options In bpf_parse_param(), keep the value of param->string intact so it can be freed later. Otherwise, the kmalloc area pointed to by param->string will be leaked as shown below: unreferenced object 0xffff888118c46d20 (size 8): comm "new_name", pid 12109, jiffies 4295580214 hex dump (first 8 bytes): 61 6e 79 00 38 c9 5c 7e any.8.\~ backtrace (crc e1b7f876): [<00000000c6848ac7>] kmemleak_alloc+0x4b/0x80 [<00000000de9f7d00>] __kmalloc_node_track_caller_noprof+0x36e/0x4a0 [<000000003e29b886>] memdup_user+0x32/0xa0 [<0000000007248326>] strndup_user+0x46/0x60 [<0000000035b3dd29>] __x64_sys_fsconfig+0x368/0x3d0 [<0000000018657927>] x64_sys_call+0xff/0x9f0 [<00000000c0cabc95>] do_syscall_64+0x3b/0xc0 [<000000002f331597>] entry_SYSCALL_64_after_hwframe+0x4b/0x53
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*

History

22 Nov 2024, 16:53

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/1f97c03f43fadc407de5b5cb01c07755053e1c22 - () https://git.kernel.org/stable/c/1f97c03f43fadc407de5b5cb01c07755053e1c22 - Patch
References () https://git.kernel.org/stable/c/5d7a0a426540319327309035509cb768a2f5c2c4 - () https://git.kernel.org/stable/c/5d7a0a426540319327309035509cb768a2f5c2c4 - Patch
CWE CWE-401

08 Nov 2024, 19:01

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: preservar param-&gt;string al analizar las opciones de montaje. En bpf_parse_param(), mantenga intacto el valor de param-&gt;string para que pueda liberarse más tarde. De lo contrario, el área kmalloc a la que apunta param-&gt;string se filtrará como se muestra a continuación: objeto sin referencia 0xffff888118c46d20 (tamaño 8): comm "new_name", pid 12109, jiffies 4295580214 volcado hexadecimal (primeros 8 bytes): 61 6e 79 00 38 c9 5c 7e any.8.\~ backtrace (crc e1b7f876): [&lt;00000000c6848ac7&gt;] kmemleak_alloc+0x4b/0x80 [&lt;00000000de9f7d00&gt;] __kmalloc_node_track_caller_noprof+0x36e/0x4a0 [&lt;000000003e29b886&gt;] memdup_user+0x32/0xa0 [&lt;0000000007248326&gt;] strndup_user+0x46/0x60 [&lt;0000000035b3dd29&gt;] __x64_sys_fsconfig+0x368/0x3d0 [&lt;0000000018657927&gt;] x64_sys_call+0xff/0x9f0 [&lt;00000000c0cabc95&gt;] do_syscall_64+0x3b/0xc0 [&lt;000000002f331597&gt;] entrada_SYSCALL_64_after_hwframe+0x4b/0x53

07 Nov 2024, 10:15

Type Values Removed Values Added
New CVE

Information

Published : 2024-11-07 10:15

Updated : 2024-11-22 16:53


NVD link : CVE-2024-50165

Mitre link : CVE-2024-50165

CVE.ORG link : CVE-2024-50165


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime