CVE catalog

CVE-2023-54149

linux: CVE-2023-54149

Severity: Medium · CVSS 5.8CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
Published: Jan 1, 2023, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.25% · Oct 25, 2026

In the Linux kernel, the following vulnerability has been resolved: net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses When using the felix driver (the only one which supports UC filtering and MC filtering) as a DSA master for a random other DSA switch, one can see the following stack trace when the downstream switch ports join a VLAN-aware bridge: ============================= WARNING: suspicious RCU usage ----------------------------- net/8021q/vlan_core.c:238 suspicious rcu_dereference_protected() usage! stack backtrace: Workqueue: dsa_ordered dsa_slave_switchdev_event_work Call trace: lockdep_rcu_suspicious+0x170/0x210 vlan_for_each+0x8c/0x188 dsa_slave_sync_uc+0x128/0x178 __hw_addr_sync_dev+0x138/0x158 dsa_slave_set_rx_mode+0x58/0x70 __dev_set_rx_mode+0x88/0xa8 dev_uc_add+0x74/0xa0 dsa_port_bridge_host_fdb_add+0xec/0x180 dsa_slave_switchdev_event_work+0x7c/0x1c8 process_one_work+0x290/0x568 What it's saying is that vlan_for_each() expects rtnl_lock() context and it's not getting it, when it's called from the DSA master's ndo_set_rx_mode(). The caller of that - dsa_slave_set_rx_mode() - is the slave DSA interface's dsa_port_bridge_host_fdb_add() which comes from the deferred dsa_slave_switchdev_event_work(). We went to great lengths to avoid the rtnl_lock() context in that call path in commit 0faf890fc519 ("net: dsa: drop rtnl_lock from dsa_slave_switchdev_event_work"), and calling rtnl_lock() is simply not an option due to the possibility of deadlocking when calling dsa_flush_workqueue() from the call paths that do hold rtnl_lock() - basically all of them. So, when the DSA master calls vlan_for_each() from its ndo_set_rx_mode(), the state of the 8021q driver on this device is really not protected from concurrent access by anything. Looking at net/8021q/, I don't think that vlan_info->vid_list was particularly designed with RCU traversal in mind, so introducing an RCU read-side form of vlan_for_each() - vlan_for_each_rcu() - won't be so easy, and it also wouldn't be exactly what we need anyway. In general I believe that the solution isn't in net/8021q/ anyway; vlan_for_each() is not cut out for this task. DSA doesn't need rtnl_lock() to be held per se - since it's not a netdev state change that we're blocking, but rather, just concurrent additions/removals to a VLAN list. We don't even need sleepable context - the callback of vlan_for_each() just schedules deferred work. The proposed escape is to remove the dependency on vlan_for_each() and to open-code a non-sleepable, rtnl-free alternative to that, based on copies of the VLAN list modified from .ndo_vlan_rx_add_vid() and .ndo_vlan_rx_kill_vid().

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	linux	sid	`7.2.12-1`	fixed
Debian	linux	forky	`7.2.12-1`	fixed
Debian	linux	trixie	`6.12.107-1`	fixed
Debian	linux	trixie-security	`6.12.113-1`	fixed
Debian	linux	bookworm	`6.1.176-1`	not affected
Debian	linux	bookworm-security	`6.1.190-1`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	linux	source	sid	`6.4.4-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	forky	`6.4.4-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	trixie	`6.4.4-1`	not yet assigned	Not reported	Not reported
Debian	linux	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[bpftool]Unknown
Source package: [linux]
Details (6)
- 7.1.0+6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 7.5.0+6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 7.1.0+6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[hyperv-daemons]Unknown
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[intel-sdsi]Unknown
Source package: [linux]
Details (1)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
[libcpupower1]Unknown
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[libcpupower-dev]Unknown
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-bpf-dev]Unknown
Source package: [linux]
Details (2)
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
[linux-compiler-gcc-12-x86]Unknown
Source package: [linux]
Details (2)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-config-6.1]Unknown
Source package: [linux]
Details (4)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-cpupower]Unknown
Source package: [linux]
Details (6)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · amd64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · arm64 · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-doc]Unknown
Source package: [linux]
Details (32)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.43-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.57-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.63-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.69-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.73-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.74-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.85-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.86-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.88-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.90-2~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.94-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.12.95-1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-doc-6.1]Unknown
Source package: [linux]
Details (6)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.176-1 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
- 6.1.180-1 · all · bookworm-security
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-amd64]Unknown
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-arm64]Unknown
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-amd64]Unknown
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-cloud-arm64]Unknown
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-common]Unknown
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-common-rt]Unknown
Source package: [linux]
Details (2)
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
- 6.1.170-3 · all · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-amd64]Unknown
Source package: [linux]
Details (1)
- 6.1.170-3 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-47-rt-arm64]Unknown
Source package: [linux]
Details (1)
- 6.1.170-3 · arm64 · bookworm
  Not affected
  dsa · linux · debian · bookworm
[linux-headers-6.1.0-50-amd64]Unknown
Source package: [linux]
Details (1)
- 6.1.176-1 · amd64 · bookworm
  Not affected
  dsa · linux · debian · bookworm

Next results

Observed: Oct 24, 2026, 3:13:43 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]