5.5

CVE-2025-38195

LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()

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

LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()

ERROR INFO:

CPU 25 Unable to handle kernel paging request at virtual address 0x0
         ...
 Call Trace:
 [<900000000023c30c>] huge_pte_offset+0x3c/0x58
 [<900000000057fd4c>] hugetlb_follow_page_mask+0x74/0x438
 [<900000000051fee8>] __get_user_pages+0xe0/0x4c8
 [<9000000000522414>] faultin_page_range+0x84/0x380
 [<9000000000564e8c>] madvise_vma_behavior+0x534/0xa48
 [<900000000056689c>] do_madvise+0x1bc/0x3e8
 [<9000000000566df4>] sys_madvise+0x24/0x38
 [<90000000015b9e88>] do_syscall+0x78/0x98
 [<9000000000221f18>] handle_syscall+0xb8/0x158

In some cases, pmd may be NULL and rely on NULL as the return value for
processing, so it is necessary to determine this situation here.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1.136 < 6.2
Linux ≫ Linux Kernel Version >= 6.6.89 < 6.6.95
Linux ≫ Linux Kernel Version >= 6.12.26 < 6.12.35
Linux ≫ Linux Kernel Version >= 6.14.5 < 6.15
Linux ≫ Linux Kernel Version >= 6.15.1 < 6.15.4
Linux ≫ Linux Kernel Version6.15 Update-
Linux ≫ Linux Kernel Version6.15 Updaterc4
Linux ≫ Linux Kernel Version6.15 Updaterc5
Linux ≫ Linux Kernel Version6.15 Updaterc6
Linux ≫ Linux Kernel Version6.15 Updaterc7
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.042
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/b427d98d55217b53c88643579fbbd8a4c351a105
Patch
https://git.kernel.org/stable/c/985f086f281b7bbb6644851e63af1a17ffff9277
Patch
https://git.kernel.org/stable/c/b5c7397b7fd125203c60b59860c168ee92291272
Patch
https://git.kernel.org/stable/c/ee084fa96123ede8b0563a1b5a9b23adc43cd50d
Patch