cbcvebase.
CVE-2022-49558
published 2025-02-26

CVE-2022-49558: In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: double hook unregistration in netns path __nft_release_hooks() is…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.26%
18.1th percentile
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: double hook unregistration in netns path __nft_release_hooks() is called from pre_netns exit path which unregisters the hooks, then the NETDEV_UNREGISTER event is triggered which unregisters the hooks again. [ 565.221461] WARNING: CPU: 18 PID: 193 at net/netfilter/core.c:495 __nf_unregister_net_hook+0x247/0x270 [...] [ 565.246890] CPU: 18 PID: 193 Comm: kworker/u64:1 Tainted: G E 5.18.0-rc7+ #27 [ 565.253682] Workqueue: netns cleanup_net [ 565.257059] RIP: 0010:__nf_unregister_net_hook+0x247/0x270 [...] [ 565.297120] Call Trace: [ 565.300900] [ 565.304683] nf_tables_flowtable_event+0x16a/0x220 [nf_tables] [ 565.308518] raw_notifier_call_chain+0x63/0x80 [ 565.312386] unregister_netdevice_many+0x54f/0xb50 Unregister and destroy netdev hook from netns pre_exit via kfree_rcu so the NETDEV_UNREGISTER path see unregistered hooks.

Affected

20 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.18.2-1 (bookworm)linux 5.18.2-1 (bookworm)
linuxlinux——
linuxlinux>= 0a0e5d47670b753d3dbf88f3c77a97a30864d9bd < 3fac8ce48fa9fd61ee9056d3ed48b2edefca8b823fac8ce48fa9fd61ee9056d3ed48b2edefca8b82
linuxlinux>= 5.10.17 < 5.10.1985.10.198
linuxlinux>= 5.4.99 < 5.4.2625.4.262
linuxlinux>= 767d1216bff82507c945e92fe719dff2083bb2f4 < 9c413a8c8bb49cc16796371805ecb260e885bb2b9c413a8c8bb49cc16796371805ecb260e885bb2b
linuxlinux>= 767d1216bff82507c945e92fe719dff2083bb2f4 < a3940dcf552f2393d1e8f263b386593f98abe829a3940dcf552f2393d1e8f263b386593f98abe829
linuxlinux>= 767d1216bff82507c945e92fe719dff2083bb2f4 < 86c0154f4c3a56c5db8b9dd09e3ce885382c2c1986c0154f4c3a56c5db8b9dd09e3ce885382c2c19
linuxlinux>= 767d1216bff82507c945e92fe719dff2083bb2f4 < f9a43007d3f7ba76d5e7f9421094f00f2ef202f8f9a43007d3f7ba76d5e7f9421094f00f2ef202f8
linuxlinux>= b110391d1e806167254d3c7ae5d637191d913175 < b09e6ccf0d12f9356e8e3508d3e3dce126298538b09e6ccf0d12f9356e8e3508d3e3dce126298538
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.205-15.10.205-1
linuxlinux_kernel>= 0 < 5.18.2-15.18.2-1
linuxlinux_kernel>= 0 < 5.18.2-15.18.2-1
linuxlinux_kernel>= 0 < 5.18.2-15.18.2-1
linuxlinux_kernel>= 5.10.17 < 5.10.1985.10.198
linuxlinux_kernel>= 5.11.1 < 5.15.455.15.45
linuxlinux_kernel>= 5.16 < 5.17.135.17.13
linuxlinux_kernel>= 5.18 < 5.18.25.18.2
linuxlinux_kernel>= 5.4.99 < 5.4.2625.4.262

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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