CVE-2024-44997

Summary

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

net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()

When there are multiple ap interfaces on one band and with WED on, turning the interface down will cause a kernel panic on MT798X.

Previously, cb_priv was freed in mtk_wed_setup_tc_block() without marking NULL,and mtk_wed_setup_tc_block_cb() didn't check the value, too.

Assign NULL after free cb_priv in mtk_wed_setup_tc_block() and check NULL in mtk_wed_setup_tc_block_cb().

Unable to handle kernel paging request at virtual address 0072460bca32b4f5 Call trace: mtk_wed_setup_tc_block_cb+0x4/0x38 0xffffffc0794084bc tcf_block_playback_offloads+0x70/0x1e8 tcf_block_unbind+0x6c/0xc8 …

Affected Software

VendorProductVersion RangeStatus
LinuxLinux799684448e3e1f57257a6155541e53510488f67b < 326a89321f9d5fe399fe6f9ff7c0fc766582a6a0affected
LinuxLinux799684448e3e1f57257a6155541e53510488f67b < b453a4bbda03aa8741279c360ac82d1c3ac33548affected
LinuxLinux799684448e3e1f57257a6155541e53510488f67b < db1b4bedb9b97c6d34b03d03815147c04fffe8b4affected
LinuxLinux6.2affected
LinuxLinux0 < 6.2unaffected
LinuxLinux6.6.48 <= 6.6.*unaffected
LinuxLinux6.10.7 <= 6.10.*unaffected
LinuxLinux6.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References