CVE-2025-40010— afs: Fix potential null pointer dereference in afs_put_server
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I. Basic Information for CVE-2025-40010
Vulnerability Information
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Vulnerability Title
afs: Fix potential null pointer dereference in afs_put_server
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: afs: Fix potential null pointer dereference in afs_put_server afs_put_server() accessed server->debug_id before the NULL check, which could lead to a null pointer dereference. Move the debug_id assignment, ensuring we never dereference a NULL server pointer.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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afs_put_server函数中未正确检查空指针，可能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-2025-40010
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Same Patch Batch · Linux · 2025-10-20 · 13 CVEs total
| CVE-2025-40017 | media: iris: Fix memory leak by freeing untracked persist buffer | |
| CVE-2025-40015 | media: stm32-csi: Fix dereference before NULL check | |
| CVE-2025-40016 | media: uvcvideo: Mark invalid entities with id UVC_INVALID_ENTITY_ID | |
| CVE-2025-40013 | ASoC: qcom: audioreach: fix potential null pointer dereference | |
| CVE-2025-40012 | net/smc: fix warning in smc_rx_splice() when calling get_page() | |
| CVE-2025-40011 | drm/gma500: Fix null dereference in hdmi teardown | |
| CVE-2025-40009 | fs/proc/task_mmu: check p->vec_buf for NULL | |
| CVE-2025-40008 | kmsan: fix out-of-bounds access to shadow memory | |
| CVE-2025-40007 | netfs: fix reference leak | |
| CVE-2025-40006 | mm/hugetlb: fix folio is still mapped when deleted | |
| CVE-2025-40005 | spi: cadence-quadspi: Implement refcount to handle unbind during busy | |
| CVE-2025-40004 | net/9p: Fix buffer overflow in USB transport layer |
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2025-40010
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