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In the Linux kernel, the following vulnerability has been resolved:
vsock: Orphan socket after transport release
During socket release, sock_orphan() is called without considering that it
sets sk->sk_wq to NULL. Later, if SO_LINGER is enabled, this leads to a
null pointer dereferenced in virtio_transport_wait_close().
Orphan the socket only after transport release.
Partially reverts the 'Fixes:' commit.
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
lock_acquire+0x19e/0x500
_raw_spin_lock_irqsave+0x47/0x70
add_wait_queue+0x46/0x230
virtio_transport_release+0x4e7/0x7f0
__vsock_release+0xfd/0x490
vsock_release+0x90/0x120
__sock_release+0xa3/0x250
sock_close+0x14/0x20
__fput+0x35e/0xa90
__x64_sys_close+0x78/0xd0
do_syscall_64+0x93/0x1b0
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Metrics
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In the Linux kernel, the following vulnerability has been resolved:
vsock: Orphan socket after transport release
During socket release, sock_orphan() is called without considering that it
sets sk->sk_wq to NULL. Later, if SO_LINGER is enabled, this leads to a
null pointer dereferenced in virtio_transport_wait_close().
Orphan the socket only after transport release.
Partially reverts the 'Fixes:' commit.
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
lock_acquire+0x1
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Removed
CVSS V3.1
NIST: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Removed
CWE
NIST: CWE-476
Removed
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
*cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
In the Linux kernel, the following vulnerability has been resolved:
vsock: Orphan socket after transport release
During socket release, sock_orphan() is called without considering that it
sets sk->sk_wq to NULL. Later, if SO_LINGER is enabled, this leads to a
null pointer dereferenced in virtio_transport_wait_close().
Orphan the socket only after transport release.
Partially reverts the 'Fixes:' commit.
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
lock_acquire+0x1
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