CVE-2025-38195— LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()
Possible ATT&CK Techniques 1AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2ca9380b12711afe95b3589bd82b59623b3c96b3< b427d98d55217b53c88643579fbbd8a4c351a105 | affected |
51424fd171cee6a33f01f7c66b8eb23ac42289d4< 985f086f281b7bbb6644851e63af1a17ffff9277 | affected | ||
bd51834d1cf65a2c801295d230c220aeebf87a73< b5c7397b7fd125203c60b59860c168ee92291272 | affected | ||
bd51834d1cf65a2c801295d230c220aeebf87a73< ee084fa96123ede8b0563a1b5a9b23adc43cd50d | affected | ||
34256805720993e37adf6127371a1265aea8376a | affected | ||
b49f085cd671addbda4802d6b9382513f7dd0f30 | affected | ||
6.6.89< 6.6.95 | affected | ||
6.12.26< 6.12.35 | affected | ||
| … +8 more rows | |||
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I. Basic Information for CVE-2025-38195
Vulnerability Information
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Vulnerability Title
LoongArch: Fix panic caused by NULL-PMD in huge_pte_offset()
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未处理NULL-PMD导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-38195
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-07-04 · 59 CVEs total
| CVE-2025-38216 | iommu/vt-d: Restore context entry setup order for aliased devices | |
| CVE-2025-38229 | media: cxusb: no longer judge rbuf when the write fails | |
| CVE-2025-38231 | nfsd: Initialize ssc before laundromat_work to prevent NULL dereference | |
| CVE-2025-38230 | jfs: validate AG parameters in dbMount() to prevent crashes | |
| CVE-2025-38228 | media: imagination: fix a potential memory leak in e5010_probe() | |
| CVE-2025-38233 | powerpc64/ftrace: fix clobbered r15 during livepatching | |
| CVE-2025-38221 | ext4: fix out of bounds punch offset | |
| CVE-2025-38219 | f2fs: prevent kernel warning due to negative i_nlink from corrupted image | |
| CVE-2025-38218 | f2fs: fix to do sanity check on sit_bitmap_size | |
| CVE-2025-38217 | hwmon: (ftsteutates) Fix TOCTOU race in fts_read() | |
| CVE-2025-38220 | ext4: only dirty folios when data journaling regular files | |
| CVE-2025-38215 | fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var | |
| CVE-2025-38214 | fbdev: Fix fb_set_var to prevent null-ptr-deref in fb_videomode_to_var | |
| CVE-2025-38212 | ipc: fix to protect IPCS lookups using RCU | |
| CVE-2025-38211 | RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction | |
| CVE-2025-38210 | configfs-tsm-report: Fix NULL dereference of tsm_ops | |
| CVE-2025-38209 | nvme-tcp: remove tag set when second admin queue config fails | |
| CVE-2025-38208 | smb: client: add NULL check in automount_fullpath | |
| CVE-2025-38207 | mm: fix uprobe pte be overwritten when expanding vma | |
| CVE-2025-38206 | exfat: fix double free in delayed_free |
Showing top 20 of 59 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-64529
crypto: qat - remove unused character device and IOCTLs - CVE-2026-64528
tty: serial: samsung: Remove redundant port lock acquisition - CVE-2026-64527
drm/hyperv: validate VMBus packet size in receive callback - CVE-2026-64526
ethtool: tsconfig: fix missing ethnl_ops_complete() - CVE-2026-64525
xfrm: move policy_bydst RCU sync from per-netns .exit to .pr
Same vendor: Linux
- CVE-2026-64529
crypto: qat - remove unused character device and IOCTLs - CVE-2026-64528
tty: serial: samsung: Remove redundant port lock acquisition - CVE-2026-64527
drm/hyperv: validate VMBus packet size in receive callback - CVE-2026-64526
ethtool: tsconfig: fix missing ethnl_ops_complete() - CVE-2026-64525
xfrm: move policy_bydst RCU sync from per-netns .exit to .pr
V. Comments for CVE-2025-38195
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