Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid double-rtnl_lock ELP metric worker batadv_v_elp_get_throughput() might be called when the RTNL lock is already held. This could be problematic when the work queue item is cancelled via cancel_delayed_work_sync() in batadv_v_elp_iface_disable(). In this case, an rtnl_lock() would cause a deadlock. To avoid this, rtnl_trylock() was used in this function to skip the retrieval of the ethtool information in case the RTNL lock was already held. But for cfg80211 interfaces, batadv_get_real_netdev() was called - which also uses rtnl_lock(). The approach for __ethtool_get_link_ksettings() must also be used instead and the lockless version __batadv_get_real_netdev() has to be called.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a0019971f340ae02ba54cf1861f72da7e03e6b66 before 4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b; affected 3c0e0aecb78cb2a2ca1dc701982d08fedb088dc6 before 192f40ad8a7dac58dae9199a065dbf7e6e67b75b; affected 781a06fd265a8151f7601122d9c2e985663828ff before fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca; affected a7aa2317285806640c844acd4cd2cd768e395264 before f3ca45673dab0514a887231de6f3243a699d5bfd; affected 0fdc3c166ac17b26014313fa2b93696354511b24 before b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77; affected 8c8ecc98f5c65947b0070a24bac11e12e47cc65d before 2ab9f2531d37775cd79228c1f5d80e6bd08d11d3; affected 8c8ecc98f5c65947b0070a24bac11e12e47cc65d before 77808fe7d03ad0062840b95f431869a8b3d88b24; affected 8c8ecc98f5c65947b0070a24bac11e12e47cc65d before cfc83a3c71517b59c1047db57da31e26a9dc2f33; affected 1c334629176c2d644befc31a20d4bf75542f7631; affected af264c2a9adc37f4bdf88ca7f3affa15d8c7de9e; affected 5.10.235 before 5.10.253; affected 5.15.179 before 5.15.203; affected 6.1.129 before 6.1.167; affected 6.6.79 before 6.6.130; affected 6.12.16 before 6.12.78; affected 5.4.291 before 5.5; affected 6.13.4 before 6.14 |
| Linux / Linux | affected 6.14; unaffected 0 before 6.14; unaffected 5.10.253 through 5.10.*; unaffected 5.15.203 through 5.15.*; unaffected 6.1.167 through 6.1.*; unaffected 6.6.130 through 6.6.*; unaffected 6.12.78 through 6.12.*; unaffected 6.18.19 through 6.18.*; unaffected 6.19.9 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b
- https://git.kernel.org/stable/c/192f40ad8a7dac58dae9199a065dbf7e6e67b75b
- https://git.kernel.org/stable/c/fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca
- https://git.kernel.org/stable/c/f3ca45673dab0514a887231de6f3243a699d5bfd
- https://git.kernel.org/stable/c/b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77
- https://git.kernel.org/stable/c/2ab9f2531d37775cd79228c1f5d80e6bd08d11d3
- https://git.kernel.org/stable/c/77808fe7d03ad0062840b95f431869a8b3d88b24
- https://git.kernel.org/stable/c/cfc83a3c71517b59c1047db57da31e26a9dc2f33