CVE-2024-50133

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Source
https://cve.org/CVERecord?id=CVE-2024-50133
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50133.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-50133
Downstream
Related
Published
2024-11-05T17:10:58.264Z
Modified
2026-05-07T04:15:32.475274Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
LoongArch: Don't crash in stack_top() for tasks without vDSO
Details

In the Linux kernel, the following vulnerability has been resolved:

LoongArch: Don't crash in stack_top() for tasks without vDSO

Not all tasks have a vDSO mapped, for example kthreads never do. If such a task ever ends up calling stack_top(), it will derefence the NULL vdso pointer and crash.

This can for example happen when using kunit:

[<9000000000203874>] stack_top+0x58/0xa8
[<90000000002956cc>] arch_pick_mmap_layout+0x164/0x220
[<90000000003c284c>] kunit_vm_mmap_init+0x108/0x12c
[<90000000003c1fbc>] __kunit_add_resource+0x38/0x8c
[<90000000003c2704>] kunit_vm_mmap+0x88/0xc8
[<9000000000410b14>] usercopy_test_init+0xbc/0x25c
[<90000000003c1db4>] kunit_try_run_case+0x5c/0x184
[<90000000003c3d54>] kunit_generic_run_threadfn_adapter+0x24/0x48
[<900000000022e4bc>] kthread+0xc8/0xd4
[<9000000000200ce8>] ret_from_kernel_thread+0xc/0xa4
Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50133.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
803b0fc5c3f2baa6e54978cd576407896f789b08
Fixed
a67d4a02bf43e15544179895ede7d5f97b84b550
Fixed
a94c197d4d749954dfaa37e907fcc8c04e4aad7e
Fixed
041cc3860b06770357876d1114d615333b0fbf31
Fixed
134475a9ab8487527238d270639a8cb74c10aab2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50133.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.19.0
Fixed
6.1.115
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.59
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.11.6

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50133.json"