CVE-2022-48972
mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add()
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() Kernel fault injection test reports null-ptr-deref as follows: BUG: kernel NULL pointer dereference, address: 0000000000000008 RIP: 0010:cfg802154_netdev_notifier_call+0x120/0x310 include/linux/list.h:114 Call Trace: <TASK> raw_notifier_call_chain+0x6d/0xa0 kernel/notifier.c:87 call_netdevice_notifiers_info+0x6e/0xc0 net/core/dev.c:1944 unregister_netdevice_many_notify+0x60d/0xcb0 net/core/dev.c:1982 unregister_netdevice_queue+0x154/0x1a0 net/core/dev.c:10879 register_netdevice+0x9a8/0xb90 net/core/dev.c:10083 ieee802154_if_add+0x6ed/0x7e0 net/mac802154/iface.c:659 ieee802154_register_hw+0x29c/0x330 net/mac802154/main.c:229 mcr20a_probe+0xaaa/0xcb1 drivers/net/ieee802154/mcr20a.c:1316 ieee802154_if_add() allocates wpan_dev as netdev's private data, but not init the list in struct wpan_dev. cfg802154_netdev_notifier_call() manage the list when device register/unregister, and may lead to null-ptr-deref. Use INIT_LIST_HEAD() on it to initialize it correctly.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.28% · top 79% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < 7410f4d1221bb182510b7778ab6eefa8b9b7102d
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < 9980a3ea20de40c83817877106c909cb032692d2
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < f00c84fb1635c27ba24ec5df65d5bd7d7dc00008
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < 1831d4540406708e48239cf38fd9c3b7ea98e08f
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < 42c319635c0cf7eb36eccac6cda76532f47b61a3
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < a110287ef4a423980309490df632e1c1e73b3dc9
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < 623918f40fa68e3bb21312a3fafb90f491bf5358
- affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 – < b3d72d3135d2ef68296c1ee174436efd65386f04
- affected 3.19
- unaffected < 3.19
- unaffected 4.9.336 – ≤ 4.9.*
- unaffected 4.14.302 – ≤ 4.14.*
- unaffected 4.19.269 – ≤ 4.19.*
- unaffected 5.4.227 – ≤ 5.4.*
- unaffected 5.10.159 – ≤ 5.10.*
- unaffected 5.15.83 – ≤ 5.15.*
- unaffected 6.0.13 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (8)
- https://git.kernel.org/stable/c/7410f4d1221bb182510b7778ab6eefa8b9b7102d (opens in a new tab)
- https://git.kernel.org/stable/c/9980a3ea20de40c83817877106c909cb032692d2 (opens in a new tab)
- https://git.kernel.org/stable/c/f00c84fb1635c27ba24ec5df65d5bd7d7dc00008 (opens in a new tab)
- https://git.kernel.org/stable/c/1831d4540406708e48239cf38fd9c3b7ea98e08f (opens in a new tab)
- https://git.kernel.org/stable/c/42c319635c0cf7eb36eccac6cda76532f47b61a3 (opens in a new tab)
- https://git.kernel.org/stable/c/a110287ef4a423980309490df632e1c1e73b3dc9 (opens in a new tab)
- https://git.kernel.org/stable/c/623918f40fa68e3bb21312a3fafb90f491bf5358 (opens in a new tab)
- https://git.kernel.org/stable/c/b3d72d3135d2ef68296c1ee174436efd65386f04 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-48972)Record last updated .