CVE-2024-58085
Linux Tomoyo Overlong Line Allocation Denial of Service
Description
In the Linux kernel, the following vulnerability has been resolved: tomoyo: don't emit warning in tomoyo_write_control() syzbot is reporting too large allocation warning at tomoyo_write_control(), for one can write a very very long line without new line character. To fix this warning, I use __GFP_NOWARN rather than checking for KMALLOC_MAX_SIZE, for practically a valid line should be always shorter than 32KB where the "too small to fail" memory-allocation rule applies. One might try to write a valid line that is longer than 32KB, but such request will likely fail with -ENOMEM. Therefore, I feel that separately returning -EINVAL when a line is longer than KMALLOC_MAX_SIZE is redundant. There is no need to distinguish over-32KB and over-KMALLOC_MAX_SIZE.
INFO
Published Date :
March 6, 2025, 5:15 p.m.
Last Modified :
March 13, 2025, 1:15 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2024-58085.
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The following table lists the changes that have been made to the
CVE-2024-58085 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 13, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/b2bd5857a0d6973ebbcb4d9831ddcaebbd257be1 Added Reference https://git.kernel.org/stable/c/c67efabddc73171c7771d3ffe4ffa1e503ee533e Added Reference https://git.kernel.org/stable/c/f6b37b3e12de638753bce79a2858070b9c4a4ad3 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 06, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: tomoyo: don't emit warning in tomoyo_write_control() syzbot is reporting too large allocation warning at tomoyo_write_control(), for one can write a very very long line without new line character. To fix this warning, I use __GFP_NOWARN rather than checking for KMALLOC_MAX_SIZE, for practically a valid line should be always shorter than 32KB where the "too small to fail" memory-allocation rule applies. One might try to write a valid line that is longer than 32KB, but such request will likely fail with -ENOMEM. Therefore, I feel that separately returning -EINVAL when a line is longer than KMALLOC_MAX_SIZE is redundant. There is no need to distinguish over-32KB and over-KMALLOC_MAX_SIZE. Added Reference https://git.kernel.org/stable/c/3df7546fc03b8f004eee0b9e3256369f7d096685 Added Reference https://git.kernel.org/stable/c/414705c0303350d139b1dc18f329fe47dfb642dd Added Reference https://git.kernel.org/stable/c/a01c200fa7eb59da4d2dbbb48b61f4a0d196c09f Added Reference https://git.kernel.org/stable/c/c9382f380e8d09209b8e5c0def0545852168be25 Added Reference https://git.kernel.org/stable/c/fe1c021eb03dae0dc9dce55e81f77a60e419a27a
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-58085 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-58085
weaknesses.