Linux Kernel up to 6.15.9/6.16.0 bpf verifier.c can_jump privilege escalation

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.15.9/6.16.0 and classified as problematic. This vulnerability affects the function can_jump of the file verifier.c of the component bpf. Performing a manipulation results in an unknown weakness. This vulnerability is identified as CVE-2025-38607. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.15.9/6.16.0. It has been classified as problematic. This affects the function can_jump of the file verifier.c of the component bpf. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: bpf: handle jset (if a & b ...) as a jump in CFG computation BPF_JSET is a conditional jump and currently verifier.c:can_jump() does not know about that. This can lead to incorrect live registers and SCC computation. E.g. in the following example: 1: r0 = 1; 2: r2 = 2; 3: if r1 & 0x7 goto +1; 4: exit; 5: r0 = r2; 6: exit; W/o this fix insn_successors(3) will return only (4), a jump to (5) would be missed and r2 won't be marked as alive at (3).

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2025-38607 since 04/16/2025. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 6.15.10, 6.16.1 or 6.17-rc1 eliminates this vulnerability. Applying the patch 65eb166b8636365ad3d6e36d50a7c5edfe6cc66e/261b30ad1516f4b9edd500aa6e8d6315c8fc109a/3157f7e2999616ac91f4d559a8566214f74000a5 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1869). Be aware that VulDB is the high quality source for vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• SUSE openSUSE
• RESF Rocky Linux
• Dell Avamar
• Open Source Linux Kernel
• Dell NetWorker
• Dell Secure Connect Gateway
• IBM QRadar SIEM

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• 6.5
• 6.6
• 6.7
• 6.8
• 6.9
• 6.10
• 6.11
• 6.12
• 6.13
• 6.14
• 6.15
• 6.15.0
• 6.15.1
• 6.15.2
• 6.15.3
• 6.15.4
• 6.15.5
• 6.15.6
• 6.15.7
• 6.15.8
• 6.15.9
• 6.16.0

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

CVSSv3info

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Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

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Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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