Linux Kernel Null Deref via ioremap in saa7164
CVE-2026-46235 Published on May 28, 2026
media: saa7164: add ioremap return checks and cleanups
In the Linux kernel, the following vulnerability has been resolved:
media: saa7164: add ioremap return checks and cleanups
Add checks for ioremap return values in saa7164_dev_setup(). If
ioremap for BAR0 or BAR2 fails, release the already allocated PCI
memory regions, remove the device from the global list, decrement
the device count, and return -ENODEV.
This prevents potential null pointer dereferences and ensures proper
cleanup on memory mapping failures.
Products Associated with CVE-2026-46235
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Affected Versions
Linux:- Version 443c1228d50518f3c550e1fef490a2c9d9246ce7 and below 3ce8f3057c51bb0a66aa3fab0862be74e9f88684 is affected.
- Version 443c1228d50518f3c550e1fef490a2c9d9246ce7 and below a9b83f46e52cf1239d780920d1a7a3e415f7b5d9 is affected.
- Version 443c1228d50518f3c550e1fef490a2c9d9246ce7 and below 6047dc542fa404b5c187cc2c7906aaaaec6d11ed is affected.
- Version 443c1228d50518f3c550e1fef490a2c9d9246ce7 and below 6c22a6d8e4c1507bba504aeebe80476144a373eb is affected.
- Version 443c1228d50518f3c550e1fef490a2c9d9246ce7 and below d51c60a498e83c9a79884c8e420f97e3885c9583 is affected.
- Version 2.6.32 is affected.
- Before 2.6.32 is unaffected.
- Version 6.6.140, <= 6.6.* is unaffected.
- Version 6.12.90, <= 6.12.* is unaffected.
- Version 6.18.32, <= 6.18.* is unaffected.
- Version 7.0.9, <= 7.0.* is unaffected.
- Version 7.1-rc1, <= * is unaffected.