CVE-2024-36917

block: fix overflow in blk_ioctl_discard()

MEDIUM
5.5
CVSS Score
Published: May 30, 2024 at 03:29 PM UTC
Updated: June 17, 2026 at 07:37 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.28 ≤ v < 6.1.912.6.28 ≤ v < 6.6.312.6.28 ≤ v < 6.8.102.6.28 ≤ v < 6.96.2 ≤ v < 6.6.316.7 ≤ v < 6.8.102.6.286.9 rc16.9 rc2d30a2605be9d5132d95944916e8f578fcfe4f976
Vendor states this is fixed in 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155 (fixed)
Vendor states this is fixed in 507d526a98c355e6f3fb2c47aacad44a69784bee (fixed)
Vendor states this is fixed in 8a26198186e97ee5fc4b42fde82629cff8c75cd6 (fixed)
Vendor states this is fixed in e1d38cde2b7b0fbd1c48082e7a98c37d750af59b (fixed)
Vendor states this is fixed in 2.6.28 (unaffected)
Vendor states this is fixed in 6.1.91 (unaffected)
Vendor states this is fixed in 6.6.31 (unaffected)
Vendor states this is fixed in 6.8.10 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/22d24a544b0d49bbcbd61c8c0eaf77d3c9297155
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/507d526a98c355e6f3fb2c47aacad44a69784bee
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8a26198186e97ee5fc4b42fde82629cff8c75cd6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e1d38cde2b7b0fbd1c48082e7a98c37d750af59b

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-190

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