Bug 2360217 (CVE-2025-22087) - CVE-2025-22087 kernel: bpf: Fix array bounds error with may_goto
Summary: CVE-2025-22087 kernel: bpf: Fix array bounds error with may_goto
Keywords:
Status: NEW
Alias: CVE-2025-22087
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-04-16 15:03 UTC by OSIDB Bzimport
Modified: 2025-06-24 13:17 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2025-04-16 15:03:03 UTC
In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix array bounds error with may_goto

may_goto uses an additional 8 bytes on the stack, which causes the
interpreters[] array to go out of bounds when calculating index by
stack_size.

1. If a BPF program is rewritten, re-evaluate the stack size. For non-JIT
cases, reject loading directly.

2. For non-JIT cases, calculating interpreters[idx] may still cause
out-of-bounds array access, and just warn about it.

3. For jit_requested cases, the execution of bpf_func also needs to be
warned. So move the definition of function __bpf_prog_ret0_warn out of
the macro definition CONFIG_BPF_JIT_ALWAYS_ON.

Comment 1 Avinash Hanwate 2025-04-17 13:49:14 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041616-CVE-2025-22087-d711@gregkh/T


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