CVE-2022-49672
published 2025-02-26CVE-2022-49672: In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.30%
22.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: tun: unlink NAPI from device on destruction
Syzbot found a race between tun file and device destruction.
NAPIs live in struct tun_file which can get destroyed before
the netdev so we have to del them explicitly. The current
code is missing deleting the NAPI if the queue was detached
first.
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.18.14-1 (bookworm) | linux 5.18.14-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 943170998b200190f99d3fe7e771437e2c51f319 < 82e729aee59acefe135fceffadcbc5b86dd4f1b9 | 82e729aee59acefe135fceffadcbc5b86dd4f1b9 |
| linux | linux | >= 943170998b200190f99d3fe7e771437e2c51f319 < a8cf919022373c97a84fe596bbea544f909c485d | a8cf919022373c97a84fe596bbea544f909c485d |
| linux | linux | >= 943170998b200190f99d3fe7e771437e2c51f319 < bec1be0a745ab420718217e3e0d9542a75108989 | bec1be0a745ab420718217e3e0d9542a75108989 |
| linux | linux | >= 943170998b200190f99d3fe7e771437e2c51f319 < 8145f77d38de4f88b8a69e1463f5c09ba189d77c | 8145f77d38de4f88b8a69e1463f5c09ba189d77c |
| linux | linux | >= 943170998b200190f99d3fe7e771437e2c51f319 < 8661d4b8faa2f7ee7a559969c0a7c57f077b1728 | 8661d4b8faa2f7ee7a559969c0a7c57f077b1728 |
| linux | linux | >= 943170998b200190f99d3fe7e771437e2c51f319 < 3b9bc84d311104906d2b4995a9a02d7b7ddab2db | 3b9bc84d311104906d2b4995a9a02d7b7ddab2db |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.136-1 | 5.10.136-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 0 < 5.18.14-1 | 5.18.14-1 |
| linux | linux_kernel | >= 4.15 < 4.19.251 | 4.19.251 |
| linux | linux_kernel | >= 4.20 < 5.4.204 | 5.4.204 |
| linux | linux_kernel | >= 5.11 < 5.15.53 | 5.15.53 |
| linux | linux_kernel | >= 5.16 < 5.18.10 | 5.18.10 |
| linux | linux_kernel | >= 5.5 < 5.10.129 | 5.10.129 |
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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GHSA
GHSA-g69g-p5jr-h7qf: In the Linux kernel, the following vulnerability has been resolved:
net: tun: unlink NAPI from device on destruction
Syzbot found a race between tun
ghsa_unreviewed·2025-10-24
CVE-2022-49672 [MEDIUM] GHSA-g69g-p5jr-h7qf: In the Linux kernel, the following vulnerability has been resolved:
net: tun: unlink NAPI from device on destruction
Syzbot found a race between tun
In the Linux kernel, the following vulnerability has been resolved:
net: tun: unlink NAPI from device on destruction
Syzbot found a race between tun file and device destruction.
NAPIs live in struct tun_file which can get destroyed before
the netdev so we have to del them explicitly. The current
code is missing deleting the NAPI if the queue was detached
first.
OSV
CVE-2022-49672: In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun f
osv·2025-02-26·CVSS 5.5
CVE-2022-49672 [MEDIUM] CVE-2022-49672: In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun f
In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.
Red Hat
kernel: net: tun: unlink NAPI from device on destruction
vendor_redhat·2025-02-26·CVSS 5.5
CVE-2022-49672 [MEDIUM] CWE-362 kernel: net: tun: unlink NAPI from device on destruction
kernel: net: tun: unlink NAPI from device on destruction
In the Linux kernel, the following vulnerability has been resolved:
net: tun: unlink NAPI from device on destruction
Syzbot found a race between tun file and device destruction.
NAPIs live in struct tun_file which can get destroyed before
the netdev so we have to del them explicitly. The current
code is missing deleting the NAPI if the queue was detached
first.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel-rt (Red Hat Enterprise Linux 7) - Out of support scope
Package: kernel (Red Hat Enterprise Linux 8) - Out of support scope
Package: kernel-rt (Red Hat Enterpri
Debian
CVE-2022-49672: linux - In the Linux kernel, the following vulnerability has been resolved: net: tun: u...
vendor_debian·2022·CVSS 5.5
CVE-2022-49672 [MEDIUM] CVE-2022-49672: linux - In the Linux kernel, the following vulnerability has been resolved: net: tun: u...
In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.
Scope: local
bookworm: resolved (fixed in 5.18.14-1)
bullseye: resolved (fixed in 5.10.136-1)
forky: resolved (fixed in 5.18.14-1)
sid: resolved (fixed in 5.18.14-1)
trixie: resolved (fixed in 5.18.14-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/3b9bc84d311104906d2b4995a9a02d7b7ddab2dbhttps://git.kernel.org/stable/c/8145f77d38de4f88b8a69e1463f5c09ba189d77chttps://git.kernel.org/stable/c/82e729aee59acefe135fceffadcbc5b86dd4f1b9https://git.kernel.org/stable/c/8661d4b8faa2f7ee7a559969c0a7c57f077b1728https://git.kernel.org/stable/c/a8cf919022373c97a84fe596bbea544f909c485dhttps://git.kernel.org/stable/c/bec1be0a745ab420718217e3e0d9542a75108989
2025-02-26
Published