CVE-2024-58068 - Linux Kernel OPP: NULL Pointer Dereference in dev_pm_opp_find_bw_*()

CVE-2024-58068 - Linux Kernel OPP: NULL Pointer Dereference in dev_pm_opp_find_bw_*()

https://cvefeed.io/rssfeed/latest.atom / Thu, 03/06/2025 - 19:28
CVE ID : CVE-2024-58068
Published : March 6, 2025, 4:15 p.m. | 15 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized If a driver calls dev_pm_opp_find_bw_ceil/floor() the retrieve bandwidth from the OPP table but the bandwidth table was not created because the interconnect properties were missing in the OPP consumer node, the kernel will crash with: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 ... pc : _read_bw+0x8/0x10 lr : _opp_table_find_key+0x9c/0x174 ... Call trace: _read_bw+0x8/0x10 (P) _opp_table_find_key+0x9c/0x174 (L) _find_key+0x98/0x168 dev_pm_opp_find_bw_ceil+0x50/0x88 ... In order to fix the crash, create an assert function to check if the bandwidth table was created before trying to get a bandwidth with _read_bw().
Severity: 0.0 | NA
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