CVE-2025-21755
Linux Kernel Vsock Null Pointer Dereference Vulnerability
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
INFO
Published Date :
Feb. 27, 2025, 3:15 a.m.
Last Modified :
March 27, 2025, 2:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-21755 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-21755 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 27, 2025
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 27, 2025
Action Type Old Value New Value Changed Description 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do_syscall_64+0x93/0x1b0 entry_SYSCALL_64_after_hwframe+0x76/0x7e Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.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:*:*:*:*:*:* Removed Reference kernel.org: https://git.kernel.org/stable/c/3a866f8376f0a5c848dcb59cd26df845fffbe6d8 Removed Reference kernel.org: https://git.kernel.org/stable/c/631e00fdac7acca676103d6cbc96eb152625f449 Removed Reference kernel.org: https://git.kernel.org/stable/c/78dafe1cf3afa02ed71084b350713b07e72a18fb Removed Reference kernel.org: https://git.kernel.org/stable/c/94d81870eec7ad2dd7af80bffd314ded26caea1a Removed Reference kernel.org: https://git.kernel.org/stable/c/bab61f41c942a20ef7b4feea50e9d36d19ad1a26 Removed Reference kernel.org: https://git.kernel.org/stable/c/c6acb650a73d5705a93b9c5a2cd5e9c8161f0be3 Removed Reference kernel.org: https://git.kernel.org/stable/c/f3b8e9d3414b2eb083d8293be25a949fe480897b Removed Reference Type kernel.org: https://git.kernel.org/stable/c/3a866f8376f0a5c848dcb59cd26df845fffbe6d8 Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/78dafe1cf3afa02ed71084b350713b07e72a18fb Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/94d81870eec7ad2dd7af80bffd314ded26caea1a Types: Patch Removed Reference Type kernel.org: https://git.kernel.org/stable/c/f3b8e9d3414b2eb083d8293be25a949fe480897b Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 13, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/631e00fdac7acca676103d6cbc96eb152625f449 Added Reference https://git.kernel.org/stable/c/bab61f41c942a20ef7b4feea50e9d36d19ad1a26 Added Reference https://git.kernel.org/stable/c/c6acb650a73d5705a93b9c5a2cd5e9c8161f0be3 -
Initial Analysis by [email protected]
Mar. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* Added Reference Type kernel.org: https://git.kernel.org/stable/c/3a866f8376f0a5c848dcb59cd26df845fffbe6d8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/78dafe1cf3afa02ed71084b350713b07e72a18fb Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/94d81870eec7ad2dd7af80bffd314ded26caea1a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f3b8e9d3414b2eb083d8293be25a949fe480897b Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 27, 2025
Action Type Old Value New Value Added Description 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 Added Reference https://git.kernel.org/stable/c/3a866f8376f0a5c848dcb59cd26df845fffbe6d8 Added Reference https://git.kernel.org/stable/c/78dafe1cf3afa02ed71084b350713b07e72a18fb Added Reference https://git.kernel.org/stable/c/94d81870eec7ad2dd7af80bffd314ded26caea1a Added Reference https://git.kernel.org/stable/c/f3b8e9d3414b2eb083d8293be25a949fe480897b
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-21755 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-21755
weaknesses.