aoe: avoid potential deadlock at set_capacity
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); [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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.189, 6.1.80, 6.6.19, 6.7.7
- CVEs
- CVE-2024-26775
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 17:51 UTC · Revision 1
Source evidence
aoe: avoid potential deadlock at set_capacity
core-osv · Original sourcePublished 3 Apr 2024, 17:01 UTC
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); [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.
osv:CVE-2024-26775
Kernel
Fixed versions: 5.15.189, 6.1.80, 6.6.19, 6.7.7
Complete source record
{
"id": "81fae73881352d32f75bff9c3ed1183c72a939166f89c14b3f4a9fef3fa16ce8",
"url": "https://osv.dev/vulnerability/CVE-2024-26775",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "aoe: avoid potential deadlock at set_capacity",
"summary": "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); [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.",
"evidence": "osv:CVE-2024-26775",
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],
"modified": "2026-10-28T02:30:38.312466552Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/2499fa286fb010ceb289950050199f33c26667b9",
"https://git.kernel.org/stable/c/2d623c94fbba3554f4446ba6f3c764994e8b0d26",
"https://git.kernel.org/stable/c/673629018ba04906899dcb631beec34d871f709c",
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"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26775.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-26775",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"provider_metadata": {
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"related_cves": [
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": null
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"source_id": "core-osv",
"document_id": 505494,
"published_at": "2024-04-03T17:01:01.299+00:00"
}