Description
The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.
References (3)
Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/torvalds/linux/commit/050fad7c4534c13c8eb1d9c2ba66012e014773cb
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20211229-0005/
Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html
Scores
CVSS v3
7.8
EPSS
0.0016
EPSS Percentile
36.7%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-120
Status
published
Products (10)
linux/linux_kernel
< 4.17
netapp/cloud_backup
netapp/h300e_firmware
netapp/h300s_firmware
netapp/h410c_firmware
netapp/h410s_firmware
netapp/h500e_firmware
netapp/h500s_firmware
netapp/h700e_firmware
netapp/h700s_firmware
Published
Dec 08, 2021
Tracked Since
Feb 18, 2026