CVE-2021-47669
published 2025-04-17CVE-2021-47669: In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb)…
PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.18%
7.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
can: vxcan: vxcan_xmit: fix use after free bug
After calling netif_rx_ni(skb), dereferencing skb is unsafe.
Especially, the canfd_frame cfd which aliases skb memory is accessed
after the netif_rx_ni().
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.10.12-1 (bookworm) | linux 5.10.12-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= a8f820a380a2a06fc4fe1a54159067958f800929 < 6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105 | 6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105 |
| linux | linux | >= a8f820a380a2a06fc4fe1a54159067958f800929 < 9b820875a32a3443d67bfd368e93038354e98052 | 9b820875a32a3443d67bfd368e93038354e98052 |
| linux | linux | >= a8f820a380a2a06fc4fe1a54159067958f800929 < a24476b37167816e6352ca1a2cf3769847774f70 | a24476b37167816e6352ca1a2cf3769847774f70 |
| linux | linux | >= a8f820a380a2a06fc4fe1a54159067958f800929 < e771a874076115df8bff27d325edfd2340e4ec69 | e771a874076115df8bff27d325edfd2340e4ec69 |
| linux | linux | >= a8f820a380a2a06fc4fe1a54159067958f800929 < 75854cad5d80976f6ea0f0431f8cedd3bcc475cb | 75854cad5d80976f6ea0f0431f8cedd3bcc475cb |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.12-1 | 5.10.12-1 |
| linux | linux_kernel | >= 0 < 5.10.12-1 | 5.10.12-1 |
| linux | linux_kernel | >= 0 < 5.10.12-1 | 5.10.12-1 |
| linux | linux_kernel | >= 0 < 5.10.12-1 | 5.10.12-1 |
| linux | linux_kernel | >= 4.12 < 4.14.218 | 4.14.218 |
| linux | linux_kernel | >= 4.15 < 4.19.171 | 4.19.171 |
| linux | linux_kernel | >= 4.20 < 5.4.93 | 5.4.93 |
| linux | linux_kernel | >= 5.5 < 5.10.11 | 5.10.11 |
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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GHSA
GHSA-677p-h2hj-9j82: In the Linux kernel, the following vulnerability has been resolved:
can: vxcan: vxcan_xmit: fix use after free bug
After calling netif_rx_ni(skb), d
ghsa_unreviewed·2025-04-17
CVE-2021-47669 [HIGH] CWE-416 GHSA-677p-h2hj-9j82: In the Linux kernel, the following vulnerability has been resolved:
can: vxcan: vxcan_xmit: fix use after free bug
After calling netif_rx_ni(skb), d
In the Linux kernel, the following vulnerability has been resolved:
can: vxcan: vxcan_xmit: fix use after free bug
After calling netif_rx_ni(skb), dereferencing skb is unsafe.
Especially, the canfd_frame cfd which aliases skb memory is accessed
after the netif_rx_ni().
OSV
CVE-2021-47669: In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), der
osv·2025-04-17·CVSS 7.8
CVE-2021-47669 [HIGH] CVE-2021-47669: In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), der
In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the canfd_frame cfd which aliases skb memory is accessed after the netif_rx_ni().
Red Hat
kernel: can: vxcan: vxcan_xmit: fix use after free bug
vendor_redhat·2025-04-17·CVSS 7.8
CVE-2021-47669 [HIGH] CWE-416 kernel: can: vxcan: vxcan_xmit: fix use after free bug
kernel: can: vxcan: vxcan_xmit: fix use after free bug
In the Linux kernel, the following vulnerability has been resolved:
can: vxcan: vxcan_xmit: fix use after free bug
After calling netif_rx_ni(skb), dereferencing skb is unsafe.
Especially, the canfd_frame cfd which aliases skb memory is accessed
after the netif_rx_ni().
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
Package: kernel (Red Hat Enterprise Linux 9) - Not affected
Package: kernel-rt (Red Hat Enterprise
Debian
CVE-2021-47669: linux - In the Linux kernel, the following vulnerability has been resolved: can: vxcan:...
vendor_debian·2021·CVSS 7.8
CVE-2021-47669 [HIGH] CVE-2021-47669: linux - In the Linux kernel, the following vulnerability has been resolved: can: vxcan:...
In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the canfd_frame cfd which aliases skb memory is accessed after the netif_rx_ni().
Scope: local
bookworm: resolved (fixed in 5.10.12-1)
bullseye: resolved (fixed in 5.10.12-1)
forky: resolved (fixed in 5.10.12-1)
sid: resolved (fixed in 5.10.12-1)
trixie: resolved (fixed in 5.10.12-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105https://git.kernel.org/stable/c/75854cad5d80976f6ea0f0431f8cedd3bcc475cbhttps://git.kernel.org/stable/c/9b820875a32a3443d67bfd368e93038354e98052https://git.kernel.org/stable/c/a24476b37167816e6352ca1a2cf3769847774f70https://git.kernel.org/stable/c/e771a874076115df8bff27d325edfd2340e4ec69
2025-04-17
Published