Description
In the Linux kernel, the following vulnerability has been resolved: clk: mmp2: call pm_genpd_init() only after genpd.name is set Setting the genpd's struct device's name with dev_set_name() is happening within pm_genpd_init(). If it remains NULL, things can blow up later, such as when crafting the devfs hierarchy for the power domain: Unable to handle kernel NULL pointer dereference at virtual address 00000000 when read ... Call trace: strlen from start_creating+0x90/0x138 start_creating from debugfs_create_dir+0x20/0x178 debugfs_create_dir from genpd_debug_add.part.0+0x4c/0x144 genpd_debug_add.part.0 from genpd_debug_init+0x74/0x90 genpd_debug_init from do_one_initcall+0x5c/0x244 do_one_initcall from kernel_init_freeable+0x19c/0x1f4 kernel_init_freeable from kernel_init+0x1c/0x12c kernel_init from ret_from_fork+0x14/0x28 Bisecting tracks this crash back to commit 899f44531fe6 ("pmdomain: core: Add GENPD_FLAG_DEV_NAME_FW flag"), which exchanges use of genpd->name with dev_name(&genpd->dev) in genpd_debug_add.part().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
899f44531fe6cac4b024710fec647ecc127724b8 to < eca01d5911fb34218d10a58d8d9534b758c8fd0aaffected899f44531fe6cac4b024710fec647ecc127724b8 to < 763517124e27b07fa300b486d7d13c5d563a215eaffected899f44531fe6cac4b024710fec647ecc127724b8 to < e24b15d4704dcb73920c3d18a6157abd18df08c1affected94a03c0400c9696735184c7d76630b818d0f5ccaaffected6.11.10 to < 6.12affected
Linux Linux
Default version status: affected
6.12affected0 to < 6.12unaffected6.12.14 to ≤ 6.12.*unaffected6.13.3 to ≤ 6.13.*unaffected6.14 to ≤ *unaffected