cbcvebase.
CVE-2024-50133
published 2024-11-05

CVE-2024-50133: 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…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
12.1th percentile
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: [] stack_top+0x58/0xa8 [] arch_pick_mmap_layout+0x164/0x220 [] kunit_vm_mmap_init+0x108/0x12c [] __kunit_add_resource+0x38/0x8c [] kunit_vm_mmap+0x88/0xc8 [] usercopy_test_init+0xbc/0x25c [] kunit_try_run_case+0x5c/0x184 [] kunit_generic_run_threadfn_adapter+0x24/0x48 [] kthread+0xc8/0xd4 [] ret_from_kernel_thread+0xc/0xa4

Affected

18 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
debianlinux-6.1< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
linuxlinux
linuxlinux>= 803b0fc5c3f2baa6e54978cd576407896f789b08 < a67d4a02bf43e15544179895ede7d5f97b84b550a67d4a02bf43e15544179895ede7d5f97b84b550
linuxlinux>= 803b0fc5c3f2baa6e54978cd576407896f789b08 < a94c197d4d749954dfaa37e907fcc8c04e4aad7ea94c197d4d749954dfaa37e907fcc8c04e4aad7e
linuxlinux>= 803b0fc5c3f2baa6e54978cd576407896f789b08 < 041cc3860b06770357876d1114d615333b0fbf31041cc3860b06770357876d1114d615333b0fbf31
linuxlinux>= 803b0fc5c3f2baa6e54978cd576407896f789b08 < 134475a9ab8487527238d270639a8cb74c10aab2134475a9ab8487527238d270639a8cb74c10aab2
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.115-16.1.115-1
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 5.19 < 6.1.1156.1.115
linuxlinux_kernel>= 6.2 < 6.6.596.6.59
linuxlinux_kernel>= 6.7 < 6.11.66.11.6
msrcazl3_kernel_6.6.57.1-7_on_azure_linux_3.0
msrcazl3_kernel_6.6.64.2-1_on_azure_linux_3.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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