CVE-2025-39822
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-39822
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-39822.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-39822
- Downstream
- Published
- 2025-09-16T13:00:21.533Z
- Modified
- 2025-12-02T19:07:52.646934Z
- Summary
- io_uring/kbuf: fix signedness in this_len calculation
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
iouring/kbuf: fix signedness in thislen calculation
When importing and using buffers, buf->len is considered unsigned. However, buf->len is converted to signed int when committing. This can lead to unexpected behavior if the buffer is large enough to be interpreted as a negative value. Make min_t calculation unsigned.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39822.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/c64eff368ac676e8540344d27a3de47e0ad90d21
- https://git.kernel.org/stable/c/f4f411c068402c370c4f9a9d4950a97af97bbbb1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39822.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-39822
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedae98dbf43d755b4e111fcd086e53939bef3e9a1aFixedf4f411c068402c370c4f9a9d4950a97af97bbbb1Fixedc64eff368ac676e8540344d27a3de47e0ad90d21
Affected versions
v6.*
v6.11
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.14
v6.14-rc1
v6.14-rc2
v6.14-rc3
v6.14-rc4
v6.14-rc5
v6.14-rc6
v6.14-rc7
v6.15
v6.15-rc1
v6.15-rc2
v6.15-rc3
v6.15-rc4
v6.15-rc5
v6.15-rc6
v6.15-rc7
v6.16
v6.16-rc1
v6.16-rc2
v6.16-rc3
v6.16-rc4
v6.16-rc5
v6.16-rc6
v6.16-rc7
v6.16.1
v6.16.2
v6.16.3
v6.16.4
v6.17-rc1