5.5
CVE-2024-26775
- EPSS 0.01%
- Published 03.04.2024 17:15:53
- Last modified 17.07.2025 17:15:35
- Source 416baaa9-dc9f-4396-8d5f-8c081f
- CVE-Watchlists
- Open
In the Linux kernel, the following vulnerability has been resolved:
aoe: avoid potential deadlock at set_capacity
Move set_capacity() outside of the section procected by (&d->lock).
To avoid possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
[1] lock(&bdev->bd_size_lock);
local_irq_disable();
[2] lock(&d->lock);
[3] lock(&bdev->bd_size_lock);
<Interrupt>
[4] lock(&d->lock);
*** DEADLOCK ***
Where [1](&bdev->bd_size_lock) hold by zram_add()->set_capacity().
[2]lock(&d->lock) hold by aoeblk_gdalloc(). And aoeblk_gdalloc()
is trying to acquire [3](&bdev->bd_size_lock) at set_capacity() call.
In this situation an attempt to acquire [4]lock(&d->lock) from
aoecmd_cfg_rsp() will lead to deadlock.
So the simplest solution is breaking lock dependency
[2](&d->lock) -> [3](&bdev->bd_size_lock) by moving set_capacity()
outside.Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 6.1.80
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.19
Linux ≫ Linux Kernel Version >= 6.7 < 6.7.7
Linux ≫ Linux Kernel Version6.8 Updaterc1
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.01% | 0.004 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 5.5 | 1.8 | 3.6 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
|
CWE-667 Improper Locking
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.