CVE-2026-23208
published 2026-02-14CVE-2026-23208: In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Prevent excessive number of frames In this case, the user constructed the…
PriorityP343high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.19%
8.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Prevent excessive number of frames
In this case, the user constructed the parameters with maxpacksize 40
for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer
size for each data URB is maxpacksize * packets, which in this example
is 40 * 6 = 240; When the user performs a write operation to send audio
data into the ALSA PCM playback stream, the calculated number of frames
is packsize[0] * packets = 264, which exceeds the allocated URB buffer
size, triggering the out-of-bounds (OOB) issue reported by syzbot [1].
Added a check for the number of single data URB frames when calculating
the number of frames to prevent [1].
[1]
BUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487
Write of size 264 at addr ffff88804337e800 by task syz.0.17/5506
Call Trace:
copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487
prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611
prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333
Affected
34 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.18.10-1 (forky) | linux 6.18.10-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 02c56650f3c118d3752122996d96173d26bb13aa < 480a1490c595a242f27493a4544b3efb21b29f6a | 480a1490c595a242f27493a4544b3efb21b29f6a |
| linux | linux | >= 2d50acd7dbd0682a56968ad9551341d7fc5b6eaf < c4dc012b027c9eb101583011089dea14d744e314 | c4dc012b027c9eb101583011089dea14d744e314 |
| linux | linux | >= 4.14.186 < 4.14.188 | 4.14.188 |
| linux | linux | >= 4.19.130 < 4.19.132 | 4.19.132 |
| linux | linux | >= 4.4.229 < 4.4.230 | 4.4.230 |
| linux | linux | >= 4.9.229 < 4.9.230 | 4.9.230 |
| linux | linux | >= 5.4.49 < 5.4.51 | 5.4.51 |
| linux | linux | >= 5.7.6 < 5.7.8 | 5.7.8 |
| linux | linux | >= 5ef30e443e6d3654cccecec99cf481a69a0a6d3b < ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41 | ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41 |
| linux | linux | >= 99703c921864a318e3e8aae74fde071b1ff35bea < 282aba56713bbc58155716b55ca7222b2d9cf3c8 | 282aba56713bbc58155716b55ca7222b2d9cf3c8 |
| linux | linux | >= aba41867dd66939d336fdf604e4d73b805d8039f < e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360 | e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360 |
| linux | linux | >= d288dc74f8cf95cb7ae0aaf245b7128627a49bf3 < d67dde02049e632ba58d3c44a164a74b6a737154 | d67dde02049e632ba58d3c44a164a74b6a737154 |
| linux | linux | >= f0bd62b64016508938df9babe47f65c2c727d25c < 152fc4f7b4a8af1c0418d2722f3b2729799cc837 | 152fc4f7b4a8af1c0418d2722f3b2729799cc837 |
| linux | linux | >= f0bd62b64016508938df9babe47f65c2c727d25c < 81e4b0009f2acc841d77a24fd796528b0bf62c4e | 81e4b0009f2acc841d77a24fd796528b0bf62c4e |
| linux | linux | >= f0bd62b64016508938df9babe47f65c2c727d25c < 62932d9ed639a9fa71b4ac1a56766a4b43abb7e4 | 62932d9ed639a9fa71b4ac1a56766a4b43abb7e4 |
| linux | linux | >= f0bd62b64016508938df9babe47f65c2c727d25c < ef5749ef8b307bf8717945701b1b79d036af0a15 | ef5749ef8b307bf8717945701b1b79d036af0a15 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_ubuntu9.1CRITICAL
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
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Ubuntu
Linux kernel (NVIDIA Tegra) vulnerabilities
vendor_ubuntu·2026-09-18·CVSS 9.1
CVE-2026-53358 [CRITICAL] Linux kernel (NVIDIA Tegra) vulnerabilities
Title: Linux kernel (NVIDIA Tegra) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- PowerPC architecture;
- RIS
Red Hat
kernel: ALSA: usb-audio: Prevent excessive number of frames
vendor_redhat·2026-02-14·CVSS 7.8
CVE-2026-23208 [HIGH] CWE-805 kernel: ALSA: usb-audio: Prevent excessive number of frames
kernel: ALSA: usb-audio: Prevent excessive number of frames
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Prevent excessive number of frames
In this case, the user constructed the parameters with maxpacksize 40
for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer
size for each data URB is maxpacksize * packets, which in this example
is 40 * 6 = 240; When the user performs a write operation to send audio
data into the ALSA PCM playback stream, the calculated number of frames
is packsize[0] * packets = 264, which exceeds the allocated URB buffer
size, triggering the out-of-bounds (OOB) issue reported by syzbot [1].
Added a check for the number of single data URB frames when calculating
the number of frames to prevent [1].
[1]
BUG: K
Microsoft
ALSA: usb-audio: Prevent excessive number of frames
vendor_msrc·2026-02-10·CVSS 7.8
CVE-2026-23208 [HIGH] ALSA: usb-audio: Prevent excessive number of frames
ALSA: usb-audio: Prevent excessive number of frames
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Debian
CVE-2026-23208: linux - In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-a...
vendor_debian·2026·CVSS 7.8
CVE-2026-23208 [HIGH] CVE-2026-23208: linux - In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-a...
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Prevent excessive number of frames In this case, the user constructed the parameters with maxpacksize 40 for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer size for each data URB is maxpacksize * packets, which in this example is 40 * 6 = 240; When the user performs a write operation to send audio data into the ALSA PCM playback stream, the calculated number of frames is packsize[0] * packets = 264, which exceeds the allocated URB buffer size, triggering the out-of-bounds (OOB) issue reported by syzbot [1]. Added a check for the number of single data URB frames when calculating the number of frames to prevent [1]. [1] BUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb
GHSA
GHSA-gmr7-w89v-rr2q: In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Prevent excessive number of frames
In this case, the user const
ghsa_unreviewed·2026-02-14
CVE-2026-23208 [HIGH] CWE-787 GHSA-gmr7-w89v-rr2q: In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Prevent excessive number of frames
In this case, the user const
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Prevent excessive number of frames
In this case, the user constructed the parameters with maxpacksize 40
for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer
size for each data URB is maxpacksize * packets, which in this example
is 40 * 6 = 240; When the user performs a write operation to send audio
data into the ALSA PCM playback stream, the calculated number of frames
is packsize[0] * packets = 264, which exceeds the allocated URB buffer
size, triggering the out-of-bounds (OOB) issue reported by syzbot [1].
Added a check for the number of single data URB frames when calculating
the number of frames to prevent [1].
[1]
BUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound
OSV
CVE-2026-23208: In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Prevent excessive number of frames In this case, the user constru
osv·2026-02-14·CVSS 7.8
CVE-2026-23208 [HIGH] CVE-2026-23208: In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Prevent excessive number of frames In this case, the user constru
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Prevent excessive number of frames In this case, the user constructed the parameters with maxpacksize 40 for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer size for each data URB is maxpacksize * packets, which in this example is 40 * 6 = 240; When the user performs a write operation to send audio data into the ALSA PCM playback stream, the calculated number of frames is packsize[0] * packets = 264, which exceeds the allocated URB buffer size, triggering the out-of-bounds (OOB) issue reported by syzbot [1]. Added a check for the number of single data URB frames when calculating the number of frames to prevent [1]. [1] BUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-23208 kernel: ALSA: usb-audio: Prevent excessive number of frames
bugzilla·2026-02-14·CVSS 7.8
CVE-2026-23208 [HIGH] CVE-2026-23208 kernel: ALSA: usb-audio: Prevent excessive number of frames
CVE-2026-23208 kernel: ALSA: usb-audio: Prevent excessive number of frames
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Prevent excessive number of frames
In this case, the user constructed the parameters with maxpacksize 40
for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer
size for each data URB is maxpacksize * packets, which in this example
is 40 * 6 = 240; When the user performs a write operation to send audio
data into the ALSA PCM playback stream, the calculated number of frames
is packsize[0] * packets = 264, which exceeds the allocated URB buffer
size, triggering the out-of-bounds (OOB) issue reported by syzbot [1].
Added a check for the number of single data URB frames when calculating
the number of frames to preve
Wiz
CVE-2026-23208 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.8
CVE-2026-23208 [HIGH] CVE-2026-23208 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-23208 :
Linux Kernel vulnerability analysis and mitigation
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Prevent excessive number of frames
In this case, the user constructed the parameters with maxpacksize 40
for rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer
size for each data URB is maxpacksize * packets, which in this example
is 40 * 6 = 240; When the user performs a write operation to send audio
data into the ALSA PCM playback stream, the calculated number of frames
is packsize[0] * packets = 264, which exceeds the allocated URB buffer
size, triggering the out-of-bounds (OOB) issue reported by syzbot [1].
Added a check for the number of single data URB frames when calculating
the number of frames to prevent
https://git.kernel.org/stable/c/152fc4f7b4a8af1c0418d2722f3b2729799cc837https://git.kernel.org/stable/c/282aba56713bbc58155716b55ca7222b2d9cf3c8https://git.kernel.org/stable/c/480a1490c595a242f27493a4544b3efb21b29f6ahttps://git.kernel.org/stable/c/62932d9ed639a9fa71b4ac1a56766a4b43abb7e4https://git.kernel.org/stable/c/81e4b0009f2acc841d77a24fd796528b0bf62c4ehttps://git.kernel.org/stable/c/ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41https://git.kernel.org/stable/c/c4dc012b027c9eb101583011089dea14d744e314https://git.kernel.org/stable/c/d67dde02049e632ba58d3c44a164a74b6a737154https://git.kernel.org/stable/c/e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360https://git.kernel.org/stable/c/ef5749ef8b307bf8717945701b1b79d036af0a15
2026-02-14
Published