CVE-2022-50350

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix a race condition between login_work and the login thread In case a malicious initiator sends some random data immediately after a login PDU; the iscsi_target_sk_data_ready() callback will schedule the login_work and, at the same time, the negotiation may end without clearing the LOGIN_FLAGS_INITIAL_PDU flag (because no additional PDU exchanges are required to complete the login). The login has been completed but the login_work function will find the LOGIN_FLAGS_INITIAL_PDU flag set and will never stop from rescheduling itself; at this point, if the initiator drops the connection, the iscsit_conn structure will be freed, login_work will dereference a released socket structure and the kernel crashes. BUG: kernel NULL pointer dereference, address: 0000000000000230 PF: supervisor write access in kernel mode PF: error_code(0x0002) - not-present page Workqueue: events iscsi_target_do_login_rx [iscsi_target_mod] RIP: 0010:_raw_read_lock_bh+0x15/0x30 Call trace: iscsi_target_do_login_rx+0x75/0x3f0 [iscsi_target_mod] process_one_work+0x1e8/0x3c0 Fix this bug by forcing login_work to stop after the login has been completed and the socket callbacks have been restored. Add a comment to clearify the return values of iscsi_target_do_login()

The following products are affected by CVE-2022-50350 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-50350.

URL	Resource
https://git.kernel.org/stable/c/1533b8b3058db618409f41554ebe768c2e3acfae
https://git.kernel.org/stable/c/3ecdca49ca49d4770639d81503c873b6d25887c4
https://git.kernel.org/stable/c/fec1b2fa62c162d03f5dcd7b03e3c89d3116d49f
https://lore.kernel.org/linux-cve-announce/2025091640-CVE-2022-50350-31bb@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-50350
https://www.cve.org/CVERecord?id=CVE-2022-50350