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Vulnerability Change Records for CVE-2024-49994

Change History

New CVE Received from kernel.org 10/21/2024 2:15:19 PM

Action Type Old Value New Value
Added Description

								
							
							
						
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 blk_ioctl_discard()

but for secure erase.

Same problem:

	uint64_t r[2] = {512, 18446744073709551104ULL};
	ioctl(fd, BLKSECDISCARD, r);

will enter near infinite loop inside blkdev_issue_secure_erase():

	a.out: attempt to access beyond end of device
	loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048
	bio_check_eod: 3286214 callbacks suppressed
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/0842ddd83939eb4db940b9af7d39e79722bc41aa [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/697ba0b6ec4ae04afb67d3911799b5e2043b4455 [No types assigned]
Added Reference

								
							
							
						
kernel.org https://git.kernel.org/stable/c/6c9915fa9410cbb9bd75ee283c03120046c56d3d [No types assigned]