CVE-2024-26739
published 2024-04-03CVE-2024-26739: In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're…
PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.28%
19.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_mirred: don't override retval if we already lost the skb
If we're redirecting the skb, and haven't called tcf_mirred_forward(),
yet, we need to tell the core to drop the skb by setting the retcode
to SHOT. If we have called tcf_mirred_forward(), however, the skb
is out of our hands and returning SHOT will lead to UaF.
Move the retval override to the error path which actually need it.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.137-1 (bookworm) | linux 6.1.137-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.137-1 (bookworm) | linux 6.1.137-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e5cf1baf92cb785b90390db1c624948e70c8b8bd < 0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd | 0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd |
| linux | linux | >= e5cf1baf92cb785b90390db1c624948e70c8b8bd < 9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5 | 9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5 |
| linux | linux | >= e5cf1baf92cb785b90390db1c624948e70c8b8bd < e873e8f7d03a2ee5b77fb1a305c782fed98e2754 | e873e8f7d03a2ee5b77fb1a305c782fed98e2754 |
| linux | linux | >= e5cf1baf92cb785b90390db1c624948e70c8b8bd < 28cdbbd38a4413b8eff53399b3f872fd4e80db9d | 28cdbbd38a4413b8eff53399b3f872fd4e80db9d |
| linux | linux | >= e5cf1baf92cb785b90390db1c624948e70c8b8bd < f4e294bbdca8ac8757db436fc82214f3882fc7e7 | f4e294bbdca8ac8757db436fc82214f3882fc7e7 |
| linux | linux | >= e5cf1baf92cb785b90390db1c624948e70c8b8bd < 166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210 | 166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.244-1 | 5.10.244-1 |
| linux | linux_kernel | >= 0 < 6.1.137-1 | 6.1.137-1 |
| linux | linux_kernel | >= 0 < 6.7.7-1 | 6.7.7-1 |
| linux | linux_kernel | >= 0 < 6.7.7-1 | 6.7.7-1 |
| linux | linux_kernel | >= 0 < 5.15.0-144.157 | 5.15.0-144.157 |
| linux | linux_kernel | >= 4.19 < 5.10.238 | 5.10.238 |
| linux | linux_kernel | >= 5.11 < 5.15.182 | 5.15.182 |
| linux | linux_kernel | >= 5.16 < 6.1.136 | 6.1.136 |
| linux | linux_kernel | >= 6.2 < 6.6.19 | 6.6.19 |
| linux | linux_kernel | >= 6.7 < 6.7.7 | 6.7.7 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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vendor_redhat·2024-04-03·CVSS 7.8
CVE-2024-26739 [HIGH] CWE-416 kernel: net/sched: act_mirred: don't override retval if we already lost the skb
kernel: net/sched: act_mirred: don't override retval if we already lost the skb
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_mirred: don't override retval if we already lost the skb
If we're redirecting the skb, and haven't called tcf_mirred_forward(),
yet, we need to tell the core to drop the skb by setting the retcode
to SHOT. If we have called tcf_mirred_forward(), however, the skb
is out of our hands and returning SHOT will lead to UaF.
Move the retval override to the error path which actually need it.
A use-after-free flaw was found in net/sched/act_mirred.c in the Linux kernel. This may result in a crash.
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
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CVE-2024-26739: linux - In the Linux kernel, the following vulnerability has been resolved: net/sched: ...
vendor_debian·2024·CVSS 7.8
CVE-2024-26739 [HIGH] CVE-2024-26739: linux - In the Linux kernel, the following vulnerability has been resolved: net/sched: ...
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.
Scope: local
bookworm: resolved (fixed in 6.1.137-1)
bullseye: resolved (fixed in 5.10.244-1)
forky: resolved (fixed in 6.7.7-1)
sid: resolved (fixed in 6.7.7-1)
trixie: resolved (fixed in 6.7.7-1)
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attacker could use this to connect a rougue device and possibly execute
arbitrary code. (CVE-2024-8805)
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Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
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CVE-2024-26739: In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're r
osv·2024-04-03·CVSS 7.8
CVE-2024-26739 [HIGH] CVE-2024-26739: In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're r
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.
GHSA
GHSA-rwch-8cp4-7v7r: In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_mirred: don't override retval if we already lost the skb
If we're
ghsa_unreviewed·2024-04-03
CVE-2024-26739 [HIGH] CWE-416 GHSA-rwch-8cp4-7v7r: In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_mirred: don't override retval if we already lost the skb
If we're
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_mirred: don't override retval if we already lost the skb
If we're redirecting the skb, and haven't called tcf_mirred_forward(),
yet, we need to tell the core to drop the skb by setting the retcode
to SHOT. If we have called tcf_mirred_forward(), however, the skb
is out of our hands and returning SHOT will lead to UaF.
Move the retval override to the error path which actually need it.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fdhttps://git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210https://git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80db9dhttps://git.kernel.org/stable/c/9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5https://git.kernel.org/stable/c/e873e8f7d03a2ee5b77fb1a305c782fed98e2754https://git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc7e7https://git.kernel.org/stable/c/166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210https://git.kernel.org/stable/c/28cdbbd38a4413b8eff53399b3f872fd4e80db9dhttps://git.kernel.org/stable/c/f4e294bbdca8ac8757db436fc82214f3882fc7e7https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
2024-04-03
Published