VYPR
Unrated severityNVD Advisory· Published Oct 21, 2024· Updated Nov 3, 2025

block: fix integer overflow in BLKSECDISCARD

CVE-2024-49994

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

Affected products

97

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

5

News mentions

0

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