CVE-2025-38462 (GCVE-0-2025-38462)

Vulnerability from cvelistv5 – Published: 2025-07-25 15:27 – Updated: 2025-11-03 17:38
VLAI?
Title
vsock: Fix transport_{g2h,h2g} TOCTOU
Summary
In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_{g2h,h2g} TOCTOU vsock_find_cid() and vsock_dev_do_ioctl() may race with module unload. transport_{g2h,h2g} may become NULL after the NULL check. Introduce vsock_transport_local_cid() to protect from a potential null-ptr-deref. KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] RIP: 0010:vsock_find_cid+0x47/0x90 Call Trace: __vsock_bind+0x4b2/0x720 vsock_bind+0x90/0xe0 __sys_bind+0x14d/0x1e0 __x64_sys_bind+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] RIP: 0010:vsock_dev_do_ioctl.isra.0+0x58/0xf0 Call Trace: __x64_sys_ioctl+0x12d/0x190 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < c5496ee685c48ed1cc183cd4263602579bb4a615 (git)
Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 80d7dc15805a93d520a249ac6d13d4f4df161c1b (git)
Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17 (git)
Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 401239811fa728fcdd53e360a91f157ffd23e1f4 (git)
Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 3734d78210cceb2ee5615719a62a5c55ed381ff8 (git)
Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 6a1bcab67bea797d83aa9dd948a0ac6ed52d121d (git)
Affected: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a , < 209fd720838aaf1420416494c5505096478156b4 (git)
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    Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.240 , ≤ 5.10.* (semver)
Unaffected: 5.15.189 , ≤ 5.15.* (semver)
Unaffected: 6.1.146 , ≤ 6.1.* (semver)
Unaffected: 6.6.99 , ≤ 6.6.* (semver)
Unaffected: 6.12.39 , ≤ 6.12.* (semver)
Unaffected: 6.15.7 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
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