Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Fix a use-after-free Change the LIO port members inside struct srpt_port from regular members into pointers. Allocate the LIO port data structures from inside srpt_make_tport() and free these from inside srpt_make_tport(). Keep struct srpt_device as long as either an RDMA port or a LIO target port is associated with it. This patch decouples the lifetime of struct srpt_port (controlled by the RDMA core) and struct srpt_port_id (controlled by LIO). This patch fixes the following KASAN complaint: BUG: KASAN: use-after-free in srpt_enable_tpg+0x31/0x70 [ib_srpt] Read of size 8 at addr ffff888141cc34b8 by task check/5093 Call Trace: <TASK> show_stack+0x4e/0x53 dump_stack_lvl+0x51/0x66 print_address_description.constprop.0.cold+0xea/0x41e print_report.cold+0x90/0x205 kasan_report+0xb9/0xf0 __asan_load8+0x69/0x90 srpt_enable_tpg+0x31/0x70 [ib_srpt] target_fabric_tpg_base_enable_store+0xe2/0x140 [target_core_mod] configfs_write_iter+0x18b/0x210 new_sync_write+0x1f2/0x2f0 vfs_write+0x3e3/0x540 ksys_write+0xbb/0x140 __x64_sys_write+0x42/0x50 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 </TASK>
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.3, < 5.10.137 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/388326bb1c32fcd09371c1d494af71471ef3a04bPatch
- https://git.kernel.org/stable/c/4ee8c39968a648d58b273582d4b021044a41ee5ePatch
- https://git.kernel.org/stable/c/b5605148e6ce36bb21020d49010b617693933128Patch
- https://git.kernel.org/stable/c/de95b52d9aabc979166aba81ccbe623aaf9c16a1Patch
- https://git.kernel.org/stable/c/e60d7e2462bf57273563c4e00dbfa79ee973b9e2Patch
FAQ
What is CVE-2022-50129?
CVE-2022-50129 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Fix a use-after-free Change the LIO port members inside struct srpt_port from regular members into pointers. Allocate t...
How severe is CVE-2022-50129?
CVE-2022-50129 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-50129?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.