CVE-2023-53244
published 2025-09-15CVE-2023-53244: In the Linux kernel, the following vulnerability has been resolved: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish When the driver calls…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.14%
3.4th percentile
In the Linux kernel, the following vulnerability has been resolved:
media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
When the driver calls tw68_risc_buffer() to prepare the buffer, the
function call dma_alloc_coherent may fail, resulting in a empty buffer
buf->cpu. Later when we free the buffer or access the buffer, null ptr
deref is triggered.
This bug is similar to the following one:
https://git.linuxtv.org/media_stage.git/commit/?id=2b064d91440b33fba5b452f2d1b31f13ae911d71.
We believe the bug can be also dynamically triggered from user side.
Similarly, we fix this by checking the return value of tw68_risc_buffer()
and the value of buf->cpu before buffer free.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.37-1 (bookworm) | linux 6.1.37-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e15d1c12c5878b3a80d6573af1721e17264e0286 < dcf632bca424e6ff8c8eb89c96694e7f05cd29b6 | dcf632bca424e6ff8c8eb89c96694e7f05cd29b6 |
| linux | linux | >= e15d1c12c5878b3a80d6573af1721e17264e0286 < 3c67f49a6643d973e83968ea35806c7b5ae68b56 | 3c67f49a6643d973e83968ea35806c7b5ae68b56 |
| linux | linux | >= e15d1c12c5878b3a80d6573af1721e17264e0286 < 3715c5e9a8f96b6ed0dcbea06da443efccac1ecc | 3715c5e9a8f96b6ed0dcbea06da443efccac1ecc |
| linux | linux | >= e15d1c12c5878b3a80d6573af1721e17264e0286 < 1634b7adcc5bef645b3666fdd564e5952a9e24e0 | 1634b7adcc5bef645b3666fdd564e5952a9e24e0 |
| linux | linux_kernel | < 5.15.113 | 5.15.113 |
| linux | linux_kernel | >= 0 < 6.1.37-1 | 6.1.37-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 0 < 6.3.7-1 | 6.3.7-1 |
| linux | linux_kernel | >= 5.16 < 6.1.30 | 6.1.30 |
| linux | linux_kernel | >= 6.2 < 6.3.4 | 6.3.4 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-7rcg-54w2-5p8p: In the Linux kernel, the following vulnerability has been resolved:
media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
When the driv
ghsa_unreviewed·2025-09-15
CVE-2023-53244 [MEDIUM] CWE-476 GHSA-7rcg-54w2-5p8p: In the Linux kernel, the following vulnerability has been resolved:
media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
When the driv
In the Linux kernel, the following vulnerability has been resolved:
media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
When the driver calls tw68_risc_buffer() to prepare the buffer, the
function call dma_alloc_coherent may fail, resulting in a empty buffer
buf->cpu. Later when we free the buffer or access the buffer, null ptr
deref is triggered.
This bug is similar to the following one:
https://git.linuxtv.org/media_stage.git/commit/?id=2b064d91440b33fba5b452f2d1b31f13ae911d71.
We believe the bug can be also dynamically triggered from user side.
Similarly, we fix this by checking the return value of tw68_risc_buffer()
and the value of buf->cpu before buffer free.
OSV
CVE-2023-53244: In the Linux kernel, the following vulnerability has been resolved: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish When the driver
osv·2025-09-15·CVSS 5.5
CVE-2023-53244 [MEDIUM] CVE-2023-53244: In the Linux kernel, the following vulnerability has been resolved: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish When the driver
In the Linux kernel, the following vulnerability has been resolved: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish When the driver calls tw68_risc_buffer() to prepare the buffer, the function call dma_alloc_coherent may fail, resulting in a empty buffer buf->cpu. Later when we free the buffer or access the buffer, null ptr deref is triggered. This bug is similar to the following one: https://git.linuxtv.org/media_stage.git/commit/?id=2b064d91440b33fba5b452f2d1b31f13ae911d71. We believe the bug can be also dynamically triggered from user side. Similarly, we fix this by checking the return value of tw68_risc_buffer() and the value of buf->cpu before buffer free.
Red Hat
kernel: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
vendor_redhat·2025-09-15·CVSS 5.5
CVE-2023-53244 [MEDIUM] kernel: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
kernel: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
In the Linux kernel, the following vulnerability has been resolved:
media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish
When the driver calls tw68_risc_buffer() to prepare the buffer, the
function call dma_alloc_coherent may fail, resulting in a empty buffer
buf->cpu. Later when we free the buffer or access the buffer, null ptr
deref is triggered.
This bug is similar to the following one:
https://git.linuxtv.org/media_stage.git/commit/?id=2b064d91440b33fba5b452f2d1b31f13ae911d71.
We believe the bug can be also dynamically triggered from user side.
Similarly, we fix this by checking the return value of tw68_risc_buffer()
and the value of buf->cpu before buffer free.
Package: kernel (Red Hat Enterpris
Debian
CVE-2023-53244: linux - In the Linux kernel, the following vulnerability has been resolved: media: pci:...
vendor_debian·2023·CVSS 5.5
CVE-2023-53244 [MEDIUM] CVE-2023-53244: linux - In the Linux kernel, the following vulnerability has been resolved: media: pci:...
In the Linux kernel, the following vulnerability has been resolved: media: pci: tw68: Fix null-ptr-deref bug in buf prepare and finish When the driver calls tw68_risc_buffer() to prepare the buffer, the function call dma_alloc_coherent may fail, resulting in a empty buffer buf->cpu. Later when we free the buffer or access the buffer, null ptr deref is triggered. This bug is similar to the following one: https://git.linuxtv.org/media_stage.git/commit/?id=2b064d91440b33fba5b452f2d1b31f13ae911d71. We believe the bug can be also dynamically triggered from user side. Similarly, we fix this by checking the return value of tw68_risc_buffer() and the value of buf->cpu before buffer free.
Scope: local
bookworm: resolved (fixed in 6.1.37-1)
bullseye: open
forky: resolved (fixed in 6.3.7-1)
sid: reso
No detection rules found.
No public exploits indexed.
2025-09-15
Published