block: initialize integrity buffer to zero before writing it to media
Metadata added by bio_integrity_prep is using plain kmalloc, which leads
to random kernel memory being written media. For PI metadata this is
limited to the app tag that isn't used by kernel generated metadata,
but for non-PI metadata the entire buffer leaks kernel memory.
Fix this by adding the __GFP_ZERO flag to allocations for writes.
Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3912-1 | linux security update |
Debian DLA |
DLA-4008-1 | linux-6.1 security update |
Ubuntu USN |
USN-7088-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-3 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-4 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7088-5 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7100-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7100-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7119-1 | Linux kernel (IoT) vulnerabilities |
Ubuntu USN |
USN-7121-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7121-2 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7121-3 | Linux kernel (Oracle) vulnerabilities |
Ubuntu USN |
USN-7123-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7144-1 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-7154-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7155-1 | Linux kernel (NVIDIA) vulnerabilities |
Ubuntu USN |
USN-7156-1 | Linux kernel (GKE) vulnerabilities |
Ubuntu USN |
USN-7154-2 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7194-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7196-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7332-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7332-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7332-3 | Linux kernel vulnerabilities |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Mon, 03 Nov 2025 22:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 04 Dec 2024 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat rhel Eus
|
|
| CPEs | cpe:/a:redhat:rhel_eus:9.2 cpe:/a:redhat:rhel_eus:9.2::nfv |
|
| Vendors & Products |
Redhat rhel Eus
|
Wed, 06 Nov 2024 02:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:enterprise_linux:8::nfv cpe:/o:redhat:enterprise_linux:8 |
Wed, 30 Oct 2024 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat
Redhat enterprise Linux |
|
| CPEs | cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux |
Thu, 12 Sep 2024 12:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 11 Sep 2024 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Thu, 22 Aug 2024 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Weaknesses | CWE-401 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
Mon, 19 Aug 2024 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Mon, 19 Aug 2024 04:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Sat, 17 Aug 2024 09:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: block: initialize integrity buffer to zero before writing it to media Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited to the app tag that isn't used by kernel generated metadata, but for non-PI metadata the entire buffer leaks kernel memory. Fix this by adding the __GFP_ZERO flag to allocations for writes. | |
| Title | block: initialize integrity buffer to zero before writing it to media | |
| References |
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-11-03T22:05:51.729Z
Reserved: 2024-08-17T09:11:59.278Z
Link: CVE-2024-43854
Updated: 2024-09-11T12:42:22.896Z
Status : Modified
Published: 2024-08-17T10:15:10.447
Modified: 2025-11-03T22:18:11.257
Link: CVE-2024-43854
OpenCVE Enrichment
No data.
Debian DLA
Ubuntu USN