CVE-2026-89877

Summary

In the Linux kernel, the following vulnerability has been resolved:

media: saa7164: fix cleanup on resource allocation failure

saa7164_dev_setup() adds the device to the global saa7164_devlist before requesting the PCI BAR memory regions.

If get_resources() fails, saa7164_dev_setup() decrements the device count and returns an error, but leaves the device on saa7164_devlist. The probe error path then frees the device, leaving a dangling entry on the global list.

Reuse the existing MMIO mapping error path to remove the device from saa7164_devlist and decrement the device count before returning.

Also release BAR0 if it was successfully requested but the BAR2 request fails.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux443c1228d50518f3c550e1fef490a2c9d9246ce7 < daa5b32cdf7db81a07ee2a91ce092a363e7754aaaffected
LinuxLinux443c1228d50518f3c550e1fef490a2c9d9246ce7 < 77f216f8de6221efb6f6c471bc9e598f1879825baffected
LinuxLinux443c1228d50518f3c550e1fef490a2c9d9246ce7 < 69259c627009bf7621010ae9e997dad2dad3339caffected
LinuxLinux443c1228d50518f3c550e1fef490a2c9d9246ce7 < 4d2048466af9e2c960c5be6dcd317e3b657d268baffected
LinuxLinux443c1228d50518f3c550e1fef490a2c9d9246ce7 < fc65623524b5bf23baddc6ae688d954fba0d5de2affected
LinuxLinux443c1228d50518f3c550e1fef490a2c9d9246ce7 < 28e84c6e2e6753ed238ea097b2842a32a6a6879baffected
LinuxLinux2.6.32affected
LinuxLinux0 < 2.6.32unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.51 <= 6.18.*unaffected
LinuxLinux7.2.5 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References