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CVE-2026-80877— afs: Fix vllist leak

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于afs_update_cell()函数在处理空服务器列表时未正确释放新的vllist，可能导致内存泄漏。

AI Predicted 5.6 Difficulty: Theoretical EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux d5c32c89b208e39a39cd8639aa21c012ce0daf4d< 13403945c2385653e282dacda304dce2a25fdb53 affected
d5c32c89b208e39a39cd8639aa21c012ce0daf4d< 2b169eedbb96f37f3f33d7b496d8283194988980 affected
d5c32c89b208e39a39cd8639aa21c012ce0daf4d< bf55969d9188380eb539bd216850bac27bc2e272 affected
d5c32c89b208e39a39cd8639aa21c012ce0daf4d< bef5514f6b6cb4bed9061f4b628d6be1cf26a39e affected
d5c32c89b208e39a39cd8639aa21c012ce0daf4d< fbfe75c81bff2359a03e85cf84293484cf60fcb9 affected
d5c32c89b208e39a39cd8639aa21c012ce0daf4d< 8afb1a787a2802caf1895dd96745cfd6790a6f95 affected
d5c32c89b208e39a39cd8639aa21c012ce0daf4d< 91d8f8e5fd34d3aed26f0fe6cf52b3f71de66cc6 affected
d5c32c89b208e39a39cd8639aa21c012ce0daf4d< fc10c0ecf06f2981af5d04357612b00051e03e9e affected
… +10 more rows
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I. Basic Information for CVE-2026-80877

Vulnerability Information
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Vulnerability Title
afs: Fix vllist leak
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: afs: Fix vllist leak Fix a leak of the new vllist in afs_update_cell() in the event that it is an empty list (nr_servers == 0), in which case the old list isn't displaced unless the old list is also empty.
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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于afs_update_cell()函数在处理空服务器列表时未正确释放新的vllist，可能导致内存泄漏。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux d5c32c89b208e39a39cd8639aa21c012ce0daf4d ~ 13403945c2385653e282dacda304dce2a25fdb53 -
Linux Linux 5.2 -

II. Public POCs for CVE-2026-80877

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III. Intelligence Information for CVE-2026-80877

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Patches & Fixes for CVE-2026-80877 (7)

Other References for CVE-2026-80877 (1)

Same Patch Batch · Linux · 2026-09-04 · 156 CVEs total

CVE-2026-80864 RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp
CVE-2026-80855 fuse: fix invalidate lock leak on open O_TRUNC DAX failure
CVE-2026-80856 fuse: fix invalidate lock leak on setattr writeback failure
CVE-2026-80857 fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
CVE-2026-80858 fuse: publish io-uring queues with release semantics
CVE-2026-80859 fuse: fix missing barrier when checking io-uring readiness
CVE-2026-80860 fuse: fix race between interrupt and resend
CVE-2026-80861 usb: xhci: bail out of setup if the controller is inaccessible
CVE-2026-80862 nvme-tcp: fix usage of page_frag_cache
CVE-2026-80863 RDMA/rxe: Fix OOB in free_rd_atomic_resources()
CVE-2026-80869 ntfs: bound the attribute-list entry in ntfs_read_inode_mount()
CVE-2026-80873 KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions
CVE-2026-80872 ALSA: hda/tas2781: Cancel async firmware request at unbind
CVE-2026-80871 crypto: xilinx-trng - Remove crypto_rng interface
CVE-2026-80870 drm/amdkfd: Validate CRIU-restored IDs before idr_alloc
CVE-2026-80867 alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
CVE-2026-80865 bpf: Add missing access_ok call to copy_user_syms
CVE-2026-80866 tipc: avoid busy looping in tipc_exit_net()
CVE-2026-80854 usb: gadget: f_tcm: keep port count until LUN teardown completes
CVE-2026-80868 ntfs3: Allocate iomap inline_data using alloc_page

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80877

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