CVE-2026-23179
Description
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: fixup hang in nvmet_tcp_listen_data_ready() When the socket is closed while in TCP_LISTEN a callback is run to flush all outstanding packets, which in turns calls nvmet_tcp_listen_data_ready() with the sk_callback_lock held. So we need to check if we are in TCP_LISTEN before attempting to get the sk_callback_lock() to avoid a deadlock.
How to fix
- Linux Linux6e0c7503a5803d568d56a9f9bca662cd94a14908, 1c90f930e7b410dd2d75a2a19a85e19c64e98ad5, 2fa8961d3a6a1c2395d8d560ffed2c782681bade or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 675b453e024154dd547921c6e6d5b58747ba7e0e ≤ v < 6e0c7503a5803d568d56a9f9bca662cd94a14908, 675b453e024154dd547921c6e6d5b58747ba7e0e ≤ v < 1c90f930e7b410dd2d75a2a19a85e19c64e98ad5, 675b453e024154dd547921c6e6d5b58747ba7e0e ≤ v < 2fa8961d3a6a1c2395d8d560ffed2c782681bade, 6.7 | 6e0c7503a5803d568d56a9f9bca662cd94a14908, 1c90f930e7b410dd2d75a2a19a85e19c64e98ad5, 2fa8961d3a6a1c2395d8d560ffed2c782681bade |
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