scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param()
In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param() The validity of sock should be checked before assignment to avoid incorrect values. Commit 57569c37f0ad ("scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()") introduced this change which may lead to inconsistent values of tcp_sw_conn->sendpage and conn->datadgst_en. Fix the issue by moving the position of the assignment.
02 / AFFECTED SOFTWARE
Affected packages
822 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param() The validity of sock should be checked before assignment to avoid incorrect values. Commit 57569c37f0ad ("scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()") introduced this change which may lead to inconsistent values of tcp_sw_conn->sendpage and conn->datadgst_en. Fix the issue by moving the position of the assignment.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/48b19b79cfa37b1e50da3b5a8af529f994c08901
- https://git.kernel.org/stable/c/499757ad3332e2527254f9ab68dec1da087b1d96
- https://git.kernel.org/stable/c/5e5c5f472972c4bc9430adc08b36763a0fa5b9f7
- https://git.kernel.org/stable/c/6e06a68fbbfcd8576eee8f7139fa2b13c9b72e91
- https://git.kernel.org/stable/c/b287e21e73ec23f3788fbe40037c42dbe6e9a9a9
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53464.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53464