CVE-2021-47170
published 2024-03-25CVE-2021-47170: In the Linux kernel, the following vulnerability has been resolved: USB: usbfs: Don't WARN about excessively large memory allocations Syzbot found that the…
PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
USB: usbfs: Don't WARN about excessively large memory allocations
Syzbot found that the kernel generates a WARNing if the user tries to
submit a bulk transfer through usbfs with a buffer that is way too
large. This isn't a bug in the kernel; it's merely an invalid request
from the user and the usbfs code does handle it correctly.
In theory the same thing can happen with async transfers, or with the
packet descriptor table for isochronous transfers.
To prevent the MM subsystem from complaining about these bad
allocation requests, add the __GFP_NOWARN flag to the kmalloc calls
for these buffers.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.14.6-1 (bookworm) | linux 5.14.6-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= add1aaeabe6b08ed26381a2a06e505b2f09c3ba5 < 2ab21d6e1411999b5fb43434f421f00bf50002eb | 2ab21d6e1411999b5fb43434f421f00bf50002eb |
| linux | linux | >= add1aaeabe6b08ed26381a2a06e505b2f09c3ba5 < 2c835fede13e03f2743a333e4370b5ed2db91e83 | 2c835fede13e03f2743a333e4370b5ed2db91e83 |
| linux | linux | >= add1aaeabe6b08ed26381a2a06e505b2f09c3ba5 < 8d83f109e920d2776991fa142bb904d985dca2ed | 8d83f109e920d2776991fa142bb904d985dca2ed |
| linux | linux | >= add1aaeabe6b08ed26381a2a06e505b2f09c3ba5 < 9f7cb3f01a10d9064cf13b3d26fb7e7a5827d098 | 9f7cb3f01a10d9064cf13b3d26fb7e7a5827d098 |
| linux | linux | >= add1aaeabe6b08ed26381a2a06e505b2f09c3ba5 < 4f2629ea67e7225c3fd292c7fe4f5b3c9d6392de | 4f2629ea67e7225c3fd292c7fe4f5b3c9d6392de |
| linux | linux_kernel | < 4.19.193 | 4.19.193 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.46-1 | 5.10.46-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 0 < 5.14.6-1 | 5.14.6-1 |
| linux | linux_kernel | >= 4.20 < 5.4.124 | 5.4.124 |
| linux | linux_kernel | >= 5.11 < 5.12.9 | 5.12.9 |
| linux | linux_kernel | >= 5.5 < 5.10.42 | 5.10.42 |
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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Red Hat
kernel: USB: usbfs: Don't WARN about excessively large memory allocations
vendor_redhat·2024-03-25·CVSS 5.5
CVE-2021-47170 [MEDIUM] CWE-20 kernel: USB: usbfs: Don't WARN about excessively large memory allocations
kernel: USB: usbfs: Don't WARN about excessively large memory allocations
In the Linux kernel, the following vulnerability has been resolved:
USB: usbfs: Don't WARN about excessively large memory allocations
Syzbot found that the kernel generates a WARNing if the user tries to
submit a bulk transfer through usbfs with a buffer that is way too
large. This isn't a bug in the kernel; it's merely an invalid request
from the user and the usbfs code does handle it correctly.
In theory the same thing can happen with async transfers, or with the
packet descriptor table for isochronous transfers.
To prevent the MM subsystem from complaining about these bad
allocation requests, add the __GFP_NOWARN flag to the kmalloc calls
for these buffers.
Package: kernel (Red Hat Enterprise Linux 6) - Out of s
Debian
CVE-2021-47170: linux - In the Linux kernel, the following vulnerability has been resolved: USB: usbfs:...
vendor_debian·2021·CVSS 5.5
CVE-2021-47170 [MEDIUM] CVE-2021-47170: linux - In the Linux kernel, the following vulnerability has been resolved: USB: usbfs:...
In the Linux kernel, the following vulnerability has been resolved: USB: usbfs: Don't WARN about excessively large memory allocations Syzbot found that the kernel generates a WARNing if the user tries to submit a bulk transfer through usbfs with a buffer that is way too large. This isn't a bug in the kernel; it's merely an invalid request from the user and the usbfs code does handle it correctly. In theory the same thing can happen with async transfers, or with the packet descriptor table for isochronous transfers. To prevent the MM subsystem from complaining about these bad allocation requests, add the __GFP_NOWARN flag to the kmalloc calls for these buffers.
Scope: local
bookworm: resolved (fixed in 5.14.6-1)
bullseye: resolved (fixed in 5.10.46-1)
forky: resolved (fixed in 5.14.6-1)
sid
OSV
CVE-2021-47170: In the Linux kernel, the following vulnerability has been resolved: USB: usbfs: Don't WARN about excessively large memory allocations Syzbot found tha
osv·2024-03-25·CVSS 5.5
CVE-2021-47170 [MEDIUM] CVE-2021-47170: In the Linux kernel, the following vulnerability has been resolved: USB: usbfs: Don't WARN about excessively large memory allocations Syzbot found tha
In the Linux kernel, the following vulnerability has been resolved: USB: usbfs: Don't WARN about excessively large memory allocations Syzbot found that the kernel generates a WARNing if the user tries to submit a bulk transfer through usbfs with a buffer that is way too large. This isn't a bug in the kernel; it's merely an invalid request from the user and the usbfs code does handle it correctly. In theory the same thing can happen with async transfers, or with the packet descriptor table for isochronous transfers. To prevent the MM subsystem from complaining about these bad allocation requests, add the __GFP_NOWARN flag to the kmalloc calls for these buffers.
GHSA
GHSA-c673-578f-v4xm: In the Linux kernel, the following vulnerability has been resolved:
USB: usbfs: Don't WARN about excessively large memory allocations
Syzbot found t
ghsa_unreviewed·2024-03-25
CVE-2021-47170 [MEDIUM] CWE-770 GHSA-c673-578f-v4xm: In the Linux kernel, the following vulnerability has been resolved:
USB: usbfs: Don't WARN about excessively large memory allocations
Syzbot found t
In the Linux kernel, the following vulnerability has been resolved:
USB: usbfs: Don't WARN about excessively large memory allocations
Syzbot found that the kernel generates a WARNing if the user tries to
submit a bulk transfer through usbfs with a buffer that is way too
large. This isn't a bug in the kernel; it's merely an invalid request
from the user and the usbfs code does handle it correctly.
In theory the same thing can happen with async transfers, or with the
packet descriptor table for isochronous transfers.
To prevent the MM subsystem from complaining about these bad
allocation requests, add the __GFP_NOWARN flag to the kmalloc calls
for these buffers.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/2ab21d6e1411999b5fb43434f421f00bf50002ebhttps://git.kernel.org/stable/c/2c835fede13e03f2743a333e4370b5ed2db91e83https://git.kernel.org/stable/c/4f2629ea67e7225c3fd292c7fe4f5b3c9d6392dehttps://git.kernel.org/stable/c/8d83f109e920d2776991fa142bb904d985dca2edhttps://git.kernel.org/stable/c/9f7cb3f01a10d9064cf13b3d26fb7e7a5827d098https://git.kernel.org/stable/c/2ab21d6e1411999b5fb43434f421f00bf50002ebhttps://git.kernel.org/stable/c/2c835fede13e03f2743a333e4370b5ed2db91e83https://git.kernel.org/stable/c/4f2629ea67e7225c3fd292c7fe4f5b3c9d6392dehttps://git.kernel.org/stable/c/8d83f109e920d2776991fa142bb904d985dca2edhttps://git.kernel.org/stable/c/9f7cb3f01a10d9064cf13b3d26fb7e7a5827d098
2024-03-25
Published