CVE-2025-39902— mm/slub: avoid accessing metadata when pointer is invalid in object_err()
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 81819f0fc8285a2a5a921c019e3e3d7b6169d225< 872f2c34ff232af1e65ad2df86d61163c8ffad42 | affected |
81819f0fc8285a2a5a921c019e3e3d7b6169d225< f66012909e7bf383fcdc5850709ed5716073fdc4 | affected | ||
81819f0fc8285a2a5a921c019e3e3d7b6169d225< 7e287256904ee796c9477e3ec92b07f236481ef3 | affected | ||
81819f0fc8285a2a5a921c019e3e3d7b6169d225< 1f0797f17927b5cad0fb7eced422f9a7c30a3191 | affected | ||
81819f0fc8285a2a5a921c019e3e3d7b6169d225< 0ef7058b4dc6fcef622ac23b45225db57f17b83f | affected | ||
81819f0fc8285a2a5a921c019e3e3d7b6169d225< dda6ec365ab04067adae40ef17015db447e90736 | affected | ||
81819f0fc8285a2a5a921c019e3e3d7b6169d225< 3baa1da473e6e50281324ff1d332d1a07a3bb02e | affected | ||
81819f0fc8285a2a5a921c019e3e3d7b6169d225< b4efccec8d06ceb10a7d34d7b1c449c569d53770 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-39902
Vulnerability Information
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Vulnerability Title
mm/slub: avoid accessing metadata when pointer is invalid in object_err()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm/slub: avoid accessing metadata when pointer is invalid in object_err() object_err() reports details of an object for further debugging, such as the freelist pointer, redzone, etc. However, if the pointer is invalid, attempting to access object metadata can lead to a crash since it does not point to a valid object. One known path to the crash is when alloc_consistency_checks() determines the pointer to the allocated object is invalid because of a freelist corruption, and calls object_err() to report it. The debug code should report and handle the corruption gracefully and not crash in the process. In case the pointer is NULL or check_valid_pointer() returns false for the pointer, only print the pointer value and skip accessing metadata.
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，该漏洞源于无效指针时访问元数据，可能导致崩溃。
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-2025-39902
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-10-01 · 169 CVEs total
| CVE-2022-50462 | MIPS: vpe-mt: fix possible memory leak while module exiting | |
| CVE-2022-50452 | net: sched: cake: fix null pointer access issue when cake_init() fails | |
| CVE-2022-50451 | fs/ntfs3: Fix memory leak on ntfs_fill_super() error path | |
| CVE-2022-50453 | gpiolib: cdev: fix NULL-pointer dereferences | |
| CVE-2022-50454 | drm/nouveau: fix a use-after-free in nouveau_gem_prime_import_sg_table() | |
| CVE-2022-50457 | mtd: core: Fix refcount error in del_mtd_device() | |
| CVE-2022-50456 | btrfs: fix resolving backrefs for inline extent followed by prealloc | |
| CVE-2022-50458 | clk: tegra: Fix refcount leak in tegra210_clock_init | |
| CVE-2022-50460 | cifs: Fix xid leak in cifs_flock() | |
| CVE-2022-50459 | scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() | |
| CVE-2022-50461 | net: ethernet: ti: am65-cpsw: Fix PM runtime leakage in am65_cpsw_nuss_ndo_slave_open() | |
| CVE-2022-50467 | scsi: lpfc: Fix null ndlp ptr dereference in abnormal exit path for GFT_ID | |
| CVE-2023-53488 | IB/hfi1: Fix possible panic during hotplug remove | |
| CVE-2023-53489 | tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. | |
| CVE-2022-50469 | staging: rtl8723bs: fix potential memory leak in rtw_init_drv_sw() | |
| CVE-2022-50468 | platform/chrome: cros_usbpd_notify: Fix error handling in cros_usbpd_notify_init() | |
| CVE-2022-50465 | ext4: fix leaking uninitialized memory in fast-commit journal | |
| CVE-2022-50463 | powerpc/52xx: Fix a resource leak in an error handling path | |
| CVE-2022-50464 | mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2() | |
| CVE-2022-50448 | mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in |
Showing top 20 of 169 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
V. Comments for CVE-2025-39902
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