CVE-2023-54053

Summary

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: pcie: fix possible NULL pointer dereference

It is possible that iwl_pci_probe() will fail and free the trans, then afterwards iwl_pci_remove() will be called and crash by trying to access trans which is already freed, fix it.

iwlwifi 0000:01:00.0: Detected crf-id 0xa5a5a5a2, cnv-id 0xa5a5a5a2 wfpm id 0xa5a5a5a2 iwlwifi 0000:01:00.0: Can't find a correct rfid for crf id 0x5a2 … BUG: kernel NULL pointer dereference, address: 0000000000000028 … RIP: 0010:iwl_pci_remove+0x12/0x30 [iwlwifi] pci_device_remove+0x3e/0xb0 device_release_driver_internal+0x103/0x1f0 driver_detach+0x4c/0x90 bus_remove_driver+0x5c/0xd0 driver_unregister+0x31/0x50 pci_unregister_driver+0x40/0x90 iwl_pci_unregister_driver+0x15/0x20 [iwlwifi] __exit_compat+0x9/0x98 [iwlwifi] __x64_sys_delete_module+0x147/0x260

Affected Software

VendorProductVersion RangeStatus
LinuxLinux809805a820c6445f7a701ded24fdc6bbc841d1e4 < f6f2d16c77f936041b8ac495fceabded4ec6c83caffected
LinuxLinux809805a820c6445f7a701ded24fdc6bbc841d1e4 < 0fc0d287c1e7dcb39a3b9bb0f8679cd68c2156c7affected
LinuxLinux809805a820c6445f7a701ded24fdc6bbc841d1e4 < 7545f21eee1356ec98581125c4dba9c4c0cc7397affected
LinuxLinux809805a820c6445f7a701ded24fdc6bbc841d1e4 < 0f9a1bcb94016d3a3c455a77b01f6bb06e15f6ebaffected
LinuxLinux809805a820c6445f7a701ded24fdc6bbc841d1e4 < dcd23aa6cc0ded7950b60ce1badb80b84045c6c0affected
LinuxLinux809805a820c6445f7a701ded24fdc6bbc841d1e4 < b655b9a9f8467684cfa8906713d33b71ea8c8f54affected
LinuxLinux5.4affected
LinuxLinux0 < 5.4unaffected
LinuxLinux5.4.244 <= 5.4.*unaffected
LinuxLinux5.10.181 <= 5.10.*unaffected
LinuxLinux5.15.113 <= 5.15.*unaffected
LinuxLinux6.1.30 <= 6.1.*unaffected
LinuxLinux6.3.4 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References