CVE-2025-38195

Description

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.

Reserved 2025-04-16 | Published 2025-07-04 | Updated 2025-07-04 | Assigner Linux

Product status

Default status
unaffected

2ca9380b12711afe95b3589bd82b59623b3c96b3 before b427d98d55217b53c88643579fbbd8a4c351a105
affected

51424fd171cee6a33f01f7c66b8eb23ac42289d4 before 985f086f281b7bbb6644851e63af1a17ffff9277
affected

bd51834d1cf65a2c801295d230c220aeebf87a73 before b5c7397b7fd125203c60b59860c168ee92291272
affected

bd51834d1cf65a2c801295d230c220aeebf87a73 before ee084fa96123ede8b0563a1b5a9b23adc43cd50d
affected

34256805720993e37adf6127371a1265aea8376a
affected

b49f085cd671addbda4802d6b9382513f7dd0f30
affected

Default status
affected

6.15
affected

Any version before 6.15
unaffected

6.6.95
unaffected

6.12.35
unaffected

6.15.4
unaffected

6.16-rc1
unaffected

References

git.kernel.org/...c/b427d98d55217b53c88643579fbbd8a4c351a105

git.kernel.org/...c/985f086f281b7bbb6644851e63af1a17ffff9277

git.kernel.org/...c/b5c7397b7fd125203c60b59860c168ee92291272

git.kernel.org/...c/ee084fa96123ede8b0563a1b5a9b23adc43cd50d

cve.org (CVE-2025-38195)

nvd.nist.gov (CVE-2025-38195)

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