Description

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

block: fix overflow in blk_ioctl_discard()

There is no check for overflow of 'start + len' in blk_ioctl_discard().
Hung task occurs if submit an discard ioctl with the following param:
start = 0x80000000000ff000, len = 0x8000000000fff000;
Add the overflow validation now.

Classification

CVE ID: CVE-2024-36917

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.83% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/8a26198186e97ee5fc4b42fde82629cff8c75cd6
https://git.kernel.org/stable/c/e1d38cde2b7b0fbd1c48082e7a98c37d750af59b
https://git.kernel.org/stable/c/507d526a98c355e6f3fb2c47aacad44a69784bee
https://git.kernel.org/stable/c/22d24a544b0d49bbcbd61c8c0eaf77d3c9297155
https://git.kernel.org/stable/c/0842ddd83939eb4db940b9af7d39e79722bc41aa
https://git.kernel.org/stable/c/6c9915fa9410cbb9bd75ee283c03120046c56d3d

Timeline