kernel: block: fix overflow in blk_ioctl_discard()

In the Linux kernel, the following vulnerability has been resolved: block: fix overflow in blkioctldiscard There is no check for overflow of 'start + len' in blkioctldiscard. Hung task occurs if submit an discard ioctl with the following param: start = 0x80000000000ff000, len = 0x8000000000fff000...

AZL-51426 CVE-2024-49994 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: block: fix integer overflow in BLKSECDISCARD I independently rediscovered commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155 block: fix overflow in blkioctldiscard but for secure erase. Same problem: uint64t r2 = 512,...