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CVE-2026-93249

spi: amlogic-spisg: Make sure clk_init_data is fully initialized

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.18.52, 7.2.6
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: amlogic-spisg: Make sure clk_init_data is fully initialized The clk_init_data structure contains several mutually-exclusive members for different methods to specify the possible parents of a clock, prompting drivers to initialize only the members they need. However, not initializing all members may cause subtle issues, which are only exposed when CONFIG_INIT_STACK_ALL_PATTERN or CONFIG_INIT_STACK_NONE is enabled. aml_spisg_clk_init() fills in init.parent_data, and assumes that init.parent_names is NULL. However, the latter in uninitialized, and thus may cause a crash. Make sure all members are fully initialized, to fix such bugs, and to avoid future breakage when converting drivers to a different method for specifying the parents.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From cef9991e04aed3305c61c392e880f6e01a0c2ea4 · fixed in bfce0f324efaa605e606cbb3f0bdb8fe5c910c11; From cef9991e04aed3305c61c392e880f6e01a0c2ea4 · fixed in 5969a3df8361a0e20379a308c2313d3e263123de; From cef9991e04aed3305c61c392e880f6e01a0c2ea4 · fixed in b2702908ee23ef31bfcf241a2e07ace0eb76bd71

  • Linux Linux

    6.17

  • KernelLinux

    From 6.17.0 · fixed in 6.18.52; From 6.19.0 · fixed in 7.2.6

References 3

git.kernel.org