CVE-2026-68226

Summary

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

media: cx23885: add ioremap return check and cleanup

Add a check for the return value of pci_ioremap_bar() in cx23885_dev_setup(). If ioremap for BAR0 fails, release the already allocated PCI memory region, decrement the device count, and return -ENODEV.

This prevents a potential null pointer dereference and ensures proper cleanup on memory mapping failure.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < f58f4b571bd75c78bbf15441086ba0c2830c1aa5affected
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < 9052fec0bb84eace81ac7bad071266052870cdf3affected
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < 6a7636e3d5204fb18fdf1c3f909a3d9d9e24064caffected
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < 8fbdca4c99f68734e9b6c030973fb61a11bede15affected
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < 83540d86d717735b52a43e4ba1b784da5cc2310aaffected
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < c68c4ce72feb6fcccc843eb3baa7af60189ed567affected
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < ff3c670a1de3a714f5644e37b9446fe7c3299fd3affected
LinuxLinuxd19770e5178a4bc49641711246360c25781d20a4 < a0701e387b46e2481c05b47f1235b954bfc2af3eaffected
LinuxLinux2.6.24affected
LinuxLinux0 < 2.6.24unaffected
LinuxLinux5.10.265 <= 5.10.*unaffected
LinuxLinux5.15.216 <= 5.15.*unaffected
LinuxLinux6.1.183 <= 6.1.*unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References