fkie_cve-2025-38462
Vulnerability from fkie_nvd
Published
2025-07-25 16:15
Modified
2025-07-29 14:14
Severity ?
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
References
Impacted products
Vendor | Product | Version |
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{ "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Fix transport_{g2h,h2g} TOCTOU\n\nvsock_find_cid() and vsock_dev_do_ioctl() may race with module unload.\ntransport_{g2h,h2g} may become NULL after the NULL check.\n\nIntroduce vsock_transport_local_cid() to protect from a potential\nnull-ptr-deref.\n\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\nRIP: 0010:vsock_find_cid+0x47/0x90\nCall Trace:\n __vsock_bind+0x4b2/0x720\n vsock_bind+0x90/0xe0\n __sys_bind+0x14d/0x1e0\n __x64_sys_bind+0x6e/0xc0\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\nRIP: 0010:vsock_dev_do_ioctl.isra.0+0x58/0xf0\nCall Trace:\n __x64_sys_ioctl+0x12d/0x190\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: Se ha corregido el error \"TOCTOU\" de transport_{g2h,h2g}. vsock_find_cid() y vsock_dev_do_ioctl() podr\u00edan competir con la descarga del m\u00f3dulo. transport_{g2h,h2g} podr\u00eda volverse nulo despu\u00e9s de la comprobaci\u00f3n de valores nulos. Se ha implementado vsock_transport_local_cid() para proteger contra una posible desreferencia de PTR nula. 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" } ], "id": "CVE-2025-38462", "lastModified": "2025-07-29T14:14:55.157", "metrics": {}, "published": "2025-07-25T16:15:32.117", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/209fd720838aaf1420416494c5505096478156b4" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3734d78210cceb2ee5615719a62a5c55ed381ff8" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/401239811fa728fcdd53e360a91f157ffd23e1f4" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6a1bcab67bea797d83aa9dd948a0ac6ed52d121d" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/80d7dc15805a93d520a249ac6d13d4f4df161c1b" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c5496ee685c48ed1cc183cd4263602579bb4a615" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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