CVE-2025-38462
published 2025-07-25CVE-2025-38462: 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…
medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
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
Affected
36 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.147-1 (bookworm) | linux 6.1.147-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < c5496ee685c48ed1cc183cd4263602579bb4a615 | c5496ee685c48ed1cc183cd4263602579bb4a615 |
| linux | linux | >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 80d7dc15805a93d520a249ac6d13d4f4df161c1b | 80d7dc15805a93d520a249ac6d13d4f4df161c1b |
| linux | linux | >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17 | 5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17 |
| linux | linux | >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 401239811fa728fcdd53e360a91f157ffd23e1f4 | 401239811fa728fcdd53e360a91f157ffd23e1f4 |
| linux | linux | >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 3734d78210cceb2ee5615719a62a5c55ed381ff8 | 3734d78210cceb2ee5615719a62a5c55ed381ff8 |
| linux | linux | >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 6a1bcab67bea797d83aa9dd948a0ac6ed52d121d | 6a1bcab67bea797d83aa9dd948a0ac6ed52d121d |
| linux | linux | >= c0cfa2d8a788fcf45df5bf4070ab2474c88d543a < 209fd720838aaf1420416494c5505096478156b4 | 209fd720838aaf1420416494c5505096478156b4 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.244-1 | 5.10.244-1 |
| linux | linux_kernel | >= 0 < 6.1.147-1 | 6.1.147-1 |
| linux | linux_kernel | >= 0 < 6.12.41-1 | 6.12.41-1 |
| linux | linux_kernel | >= 0 < 6.16.3-1 | 6.16.3-1 |
| linux | linux_kernel | >= 0 < 5.15.0-156.166 | 5.15.0-156.166 |
| linux | linux_kernel | >= 0 < 6.8.0-100.100 | 6.8.0-100.100 |
| linux | linux_kernel | >= 5.11 < 5.15.189 | 5.15.189 |
| linux | linux_kernel | >= 5.16 < 6.1.146 | 6.1.146 |
| linux | linux_kernel | >= 5.5 < 5.10.240 | 5.10.240 |
| linux | linux_kernel | >= 6.13 < 6.15.7 | 6.15.7 |
| linux | linux_kernel | >= 6.2 < 6.6.99 | 6.6.99 |
| linux | linux_kernel | >= 6.7 < 6.12.39 | 6.12.39 |
| msrc | azl3_kernel_6.6.96.2-1_on_azure_linux_3.0 | — | — |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv4.7MEDIUM