CVE-2024-50133

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2024
Source publication: Nov 5, 2024
Source updated: May 11, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

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

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

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

Linux

Vendor: Linux
Product: Linux
Platforms: Unknown
Default status: unaffected

Linux · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
803b0fc5c3f2baa6e54978cd576407896f789b08	`affected`	git	a67d4a02bf43e15544179895ede7d5f97b84b550	Unavailable	None listed
803b0fc5c3f2baa6e54978cd576407896f789b08	`affected`	git	a94c197d4d749954dfaa37e907fcc8c04e4aad7e	Unavailable	None listed
803b0fc5c3f2baa6e54978cd576407896f789b08	`affected`	git	041cc3860b06770357876d1114d615333b0fbf31	Unavailable	None listed
803b0fc5c3f2baa6e54978cd576407896f789b08	`affected`	git	134475a9ab8487527238d270639a8cb74c10aab2	Unavailable	None listed

Linux

Vendor: Linux
Product: Linux
Platforms: Unknown
Default status: affected

Linux · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
5.19	`affected`	Unavailable	Unavailable	Unavailable	None listed
0	`unaffected`	semver	5.19	Unavailable	None listed
6.1.115	`unaffected`	semver	Unavailable	6.1.*	None listed
6.6.59	`unaffected`	semver	Unavailable	6.6.*	None listed
6.11.6	`unaffected`	semver	Unavailable	6.11.*	None listed
6.12	`unaffected`	original_commit_for_fix	Unavailable	*	None listed