CVE-2021-47306
published 2024-05-21CVE-2021-47306: In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after…
PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.23%
14.1th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: fddi: fix UAF in fza_probe
fp is netdev private data and it cannot be
used after free_netdev() call. Using fp after free_netdev()
can cause UAF bug. Fix it by moving free_netdev() after error message.
TURBOchannel adapter")
Affected
14 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 | >= 61414f5ec9834df8aa4f55c90de16b71a3d6ca8d < 04b06716838bfc26742dbed3ae1d3697fe5317ee | 04b06716838bfc26742dbed3ae1d3697fe5317ee |
| linux | linux | >= 61414f5ec9834df8aa4f55c90de16b71a3d6ca8d < f33605908a9b6063525e9f68e62d739948c5fccf | f33605908a9b6063525e9f68e62d739948c5fccf |
| linux | linux | >= 61414f5ec9834df8aa4f55c90de16b71a3d6ca8d < bdfbb51f7a437ae8ea91317a5c133ec13adf3c47 | bdfbb51f7a437ae8ea91317a5c133ec13adf3c47 |
| linux | linux | >= 61414f5ec9834df8aa4f55c90de16b71a3d6ca8d < deb7178eb940e2c5caca1b1db084a69b2e59b4c9 | deb7178eb940e2c5caca1b1db084a69b2e59b4c9 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.70-1 | 5.10.70-1 |
| 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 < 5.4.135 | 5.4.135 |
| linux | linux_kernel | >= 5.11 < 5.13.5 | 5.13.5 |
| linux | linux_kernel | >= 5.5 < 5.10.53 | 5.10.53 |
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_debian7.8HIGH
vendor_redhat7.8HIGH
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Red Hat
kernel: net: fddi: fix UAF in fza_probe
vendor_redhat·2024-05-21·CVSS 7.8
CVE-2021-47306 [HIGH] CWE-416 kernel: net: fddi: fix UAF in fza_probe
kernel: net: fddi: fix UAF in fza_probe
In the Linux kernel, the following vulnerability has been resolved:
net: fddi: fix UAF in fza_probe
fp is netdev private data and it cannot be
used after free_netdev() call. Using fp after free_netdev()
can cause UAF bug. Fix it by moving free_netdev() after error message.
TURBOchannel adapter")
A vulnerability was found in the fza_probe function in the Linux kernel's FDDI driver. Private data might be used after it has been freed, leading to an use-after-free issue, causing system instability or crashes if the freed data is accessed.
Statement: This vulnerability is rated as a moderate because this issue does not directly expose sensitive information. No Red Hat products are affected.
Mitigation: Red Hat has investigated whether a possible mitig
Debian
CVE-2021-47306: linux - In the Linux kernel, the following vulnerability has been resolved: net: fddi: ...
vendor_debian·2021·CVSS 7.8
CVE-2021-47306 [HIGH] CVE-2021-47306: linux - In the Linux kernel, the following vulnerability has been resolved: net: fddi: ...
In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter")
Scope: local
bookworm: resolved (fixed in 5.14.6-1)
bullseye: resolved (fixed in 5.10.70-1)
forky: resolved (fixed in 5.14.6-1)
sid: resolved (fixed in 5.14.6-1)
trixie: resolved (fixed in 5.14.6-1)
GHSA
GHSA-j8g9-5p8g-4f3x: In the Linux kernel, the following vulnerability has been resolved:
net: fddi: fix UAF in fza_probe
fp is netdev private data and it cannot be
used
ghsa_unreviewed·2024-05-21
CVE-2021-47306 [HIGH] CWE-416 GHSA-j8g9-5p8g-4f3x: In the Linux kernel, the following vulnerability has been resolved:
net: fddi: fix UAF in fza_probe
fp is netdev private data and it cannot be
used
In the Linux kernel, the following vulnerability has been resolved:
net: fddi: fix UAF in fza_probe
fp is netdev private data and it cannot be
used after free_netdev() call. Using fp after free_netdev()
can cause UAF bug. Fix it by moving free_netdev() after error message.
TURBOchannel adapter")
OSV
CVE-2021-47306: In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used af
osv·2024-05-21·CVSS 7.8
CVE-2021-47306 [HIGH] CVE-2021-47306: In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used af
In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter")
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317eehttps://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccfhttps://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317eehttps://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf
2024-05-21
Published