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CVE PROGRAM SOURCE RECORDUnscored

CVE-2021-47165

drm/meson: fix shutdown crash when component not probed

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: drm/meson: fix shutdown crash when component not probed When main component is not probed, by example when the dw-hdmi module is not loaded yet or in probe defer, the following crash appears on shutdown: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000038 ... pc : meson_drv_shutdown+0x24/0x50 lr : platform_drv_shutdown+0x20/0x30 ... Call trace: meson_drv_shutdown+0x24/0x50 platform_drv_shutdown+0x20/0x30 device_shutdown+0x158/0x360 kernel_restart_prepare+0x38/0x48 kernel_restart+0x18/0x68 __do_sys_reboot+0x224/0x250 __arm64_sys_reboot+0x24/0x30 ... Simply check if the priv struct has been allocated before using it.

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

  • 8a5160cc8488776ddc48ea045860dab015f47390 to < b4298d33c1fcce511ffe84d8d3de07e220300f9baffected
  • 8fbbf2b3849419e31731902d7478b0c934732632 to < e256a0eb43e17209e347409a80805b1659398d68affected
  • d2100ef32a8cfd024bad94f4fbc5e53d40d2b3da to < 4ce2bf20b4a6e307e114847d60b2bf40a6a1fac0affected
  • d4ec1ffbdaa8939a208656e9c1440742c457ef16 to < d66083c0d6f5125a4d982aa177dd71ab4cd3d212affected
  • fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791 to < b4b91033a0b11fe9ade58156cd9168f89f4a8c1aaffected
  • fa0c16caf3d73ab4d2e5d6fa2ef2394dbec91791 to < 7cfc4ea78fc103ea51ecbacd9236abb5b1c490d2affected
  • cef14d5d92f14a6e282c3216c2da63e05f14758aaffected
  • 4.14.226 to < 4.14.235affected
  • 4.19.181 to < 4.19.193affected
  • 5.4.106 to < 5.4.124affected
  • 5.10.24 to < 5.10.42affected
  • 5.11.7 to < 5.12affected

Linux Linux

Default version status: affected

  • 5.12affected
  • 0 to < 5.12unaffected
  • 4.14.235 to ≤ 4.14.*unaffected
  • 4.19.193 to ≤ 4.19.*unaffected
  • 5.4.124 to ≤ 5.4.*unaffected
  • 5.10.42 to ≤ 5.10.*unaffected
  • 5.12.9 to ≤ 5.12.*unaffected
  • 5.13 to ≤ *unaffected

References