CVE-2023-54066
published 2025-12-24CVE-2023-54066: In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer In…
PriorityP420low5.5
EPSS
0.17%
7.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen.
We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a
("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.55-1 (bookworm) | linux 6.1.55-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 1ea76d16569b7fc242b860c7e19549be028b13d1 < 578b67614ae0e4fba3945b66a4c8f9ae77115bcb | 578b67614ae0e4fba3945b66a4c8f9ae77115bcb |
| linux | linux | >= 1ea76d16569b7fc242b860c7e19549be028b13d1 < 2a33fc57133d6f39d62285df6706aeb1714967f1 | 2a33fc57133d6f39d62285df6706aeb1714967f1 |
| linux | linux | >= 1ea76d16569b7fc242b860c7e19549be028b13d1 < dfcd3c010209927b9f45b860f046635dc32e32e1 | dfcd3c010209927b9f45b860f046635dc32e32e1 |
| linux | linux | >= 1ea76d16569b7fc242b860c7e19549be028b13d1 < 72af676551efe820e309a6c7681c2c4372f37376 | 72af676551efe820e309a6c7681c2c4372f37376 |
| linux | linux | >= 1ea76d16569b7fc242b860c7e19549be028b13d1 < b97719a66970601cd3151a3e2020f4454a1c4ff6 | b97719a66970601cd3151a3e2020f4454a1c4ff6 |
| linux | linux_kernel | >= 0 < 5.10.197-1 | 5.10.197-1 |
| linux | linux_kernel | >= 0 < 6.1.55-1 | 6.1.55-1 |
| linux | linux_kernel | >= 0 < 6.5.6-1 | 6.5.6-1 |
| linux | linux_kernel | >= 0 < 6.5.6-1 | 6.5.6-1 |
| linux | linux_kernel | >= 5.11.0 < 5.15.133 | 5.15.133 |
| linux | linux_kernel | >= 5.16.0 < 6.1.55 | 6.1.55 |
| linux | linux_kernel | >= 5.5.0 < 5.10.197 | 5.10.197 |
| linux | linux_kernel | >= 6.2.0 < 6.5.5 | 6.5.5 |
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Red Hat
kernel: Linux kernel: Denial of Service in dvb-usb-v2 gl861 due to null-pointer dereference
vendor_redhat·2025-12-24·CVSS 5.5
CVE-2023-54066 [LOW] CWE-476 kernel: Linux kernel: Denial of Service in dvb-usb-v2 gl861 due to null-pointer dereference
kernel: Linux kernel: Denial of Service in dvb-usb-v2 gl861 due to null-pointer dereference
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen.
We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a
("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
A flaw was found in the Linux kernel's dvb-usb-v2 gl861 module. A local user could exploit this null-pointer dereference vulnerability by provi
Debian
CVE-2023-54066: linux - In the Linux kernel, the following vulnerability has been resolved: media: dvb-...
vendor_debian·2023
CVE-2023-54066 CVE-2023-54066: linux - In the Linux kernel, the following vulnerability has been resolved: media: dvb-...
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Scope: local
bookworm: resolved (fixed in 6.1.55-1)
bullseye: resolved (fixed in 5.10.197-1)
forky: resolved (fixed in 6.5.6-1)
sid: resolved (fixed in 6.5.6-1)
trixie: resolved (fixed in 6.5.6-1)
GHSA
GHSA-9qq8-wxc9-p23m: In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i
ghsa_unreviewed·2025-12-24
CVE-2023-54066 GHSA-9qq8-wxc9-p23m: In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen.
We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a
("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
OSV
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
osv·2025-12-24
CVE-2023-54066 media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen.
We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a
("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
OSV
CVE-2023-54066: In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer In gl861_i2c
osv·2025-12-24
CVE-2023-54066 CVE-2023-54066: In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer In gl861_i2c
In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
No detection rules found.
No public exploits indexed.
Wiz
CVE-2023-54066 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz
CVE-2023-54066 CVE-2023-54066 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2023-54066 :
Linux Kernel vulnerability analysis and mitigation
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen.
We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a
("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Source : NVD
Published December 24, 2025
CNA Score N/A
Affected Technologies
Linux Kernel
Linux Debian
Has Public Exploit No
Has CISA KEV Exploit No
CIS
Bugzilla
CVE-2023-54066 kernel: Linux kernel: Denial of Service in dvb-usb-v2 gl861 due to null-pointer dereference
bugzilla·2025-12-24
CVE-2023-54066 [LOW] CVE-2023-54066 kernel: Linux kernel: Denial of Service in dvb-usb-v2 gl861 due to null-pointer dereference
CVE-2023-54066 kernel: Linux kernel: Denial of Service in dvb-usb-v2 gl861 due to null-pointer dereference
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-usb-v2: gl861: Fix null-ptr-deref in gl861_i2c_master_xfer
In gl861_i2c_master_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach gl861_i2c_master_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen.
We add check on msg[i].len to prevent crash.
Similar commit:
commit 0ed554fd769a
("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
Discussion:
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122430-CVE-2023-54066-8ff7@gregkh/T
https://git.kernel.org/stable/c/2a33fc57133d6f39d62285df6706aeb1714967f1https://git.kernel.org/stable/c/578b67614ae0e4fba3945b66a4c8f9ae77115bcbhttps://git.kernel.org/stable/c/72af676551efe820e309a6c7681c2c4372f37376https://git.kernel.org/stable/c/b97719a66970601cd3151a3e2020f4454a1c4ff6https://git.kernel.org/stable/c/dfcd3c010209927b9f45b860f046635dc32e32e1
2025-12-24
Published