CVE-2023-53722

Summary

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

md: raid1: fix potential OOB in raid1_remove_disk()

If rddev->raid_disk is greater than mddev->raid_disks, there will be an out-of-bounds in raid1_remove_disk(). We have already found similar reports as follows:

  1. commit d17f744e883b ("md-raid10: fix KASAN warning")
  2. commit 1ebc2cec0b7d ("dm raid: fix KASAN warning in raid5_remove_disk")

Fix this bug by checking whether the "number" variable is valid.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < beedf40f73939f248c81802eda08a2a8148ea13eaffected
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < 91fbd4e75cb573f44d2619a9dc2f9ba927040760affected
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < 25a68f2286be56fb3a6f9fa0e269c04b5e6c6e24affected
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < 7993cfc041481a3a9cd4a3858088fc846b8ccaf7affected
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < 4f96c0665f9f4cf70130c9757750dc43dc679c82affected
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < 4f7d853b4590fc20e90dd50e346c02811a8c5b08affected
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < 4bdb92eaf645e312975357adc3c4e9523b6e67f1affected
LinuxLinuxb8321b68d1445f308324517e45fb0a5c2b48e271 < 8b0472b50bcf0f19a5119b00a53b63579c8e1e4daffected
LinuxLinux3.3affected
LinuxLinux0 < 3.3unaffected
LinuxLinux4.14.326 <= 4.14.*unaffected
LinuxLinux4.19.295 <= 4.19.*unaffected
LinuxLinux5.4.257 <= 5.4.*unaffected
LinuxLinux5.10.197 <= 5.10.*unaffected
LinuxLinux5.15.133 <= 5.15.*unaffected
LinuxLinux6.1.55 <= 6.1.*unaffected
LinuxLinux6.5.5 <= 6.5.*unaffected
LinuxLinux6.6 <= *unaffected

Weaknesses

References