net: Fix an unsafe loop on the list
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: Fix an unsafe loop on the list The kernel may crash when deleting a genetlink family if there are still listeners for that family: Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c000000000c080bc] netlink_update_socket_mc+0x3c/0xc0 LR [c000000000c0f764] __netlink_clear_multicast_users+0x74/0xc0 Call Trace: __netlink_clear_multicast_users+0x74/0xc0 genl_unregister_family+0xd4/0x2d0 Change the unsafe loop on the list to a safe one, because inside the loop there is an element removal from this list.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.kernel.org/stable/c/464801a0f6ccb52b21faa33bac6014fd74cc5e10
- https://git.kernel.org/stable/c/8e0766fcf37ad8eed289dd3853628dd9b01b58b0
- https://git.kernel.org/stable/c/68ad5da6ca630a276f0a5c924179e57724d00013
- https://git.kernel.org/stable/c/1cdec792b2450105b1314c5123a9a0452cb2c2f0
- https://git.kernel.org/stable/c/5f03a7f601f33cda1f710611625235dc86fd8a9e
- https://git.kernel.org/stable/c/3be342e0332a7c83eb26fbb22bf156fdca467a5d
- https://git.kernel.org/stable/c/49f9b726bf2bf3dd2caf0d27cadf4bc1ccf7a7dd
- https://git.kernel.org/stable/c/1dae9f1187189bc09ff6d25ca97ead711f7e26f9
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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