mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() (Linux Linux)

CVE-2022-48972
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.28 % · percentile 21 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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.

Weaknesses (CWE)

  • CWE-476 — NULL Pointer Dereference

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected fcf39e6e88e9492f6688ec8ba4e1be622b904232 < 7410f4d1221bb182510b7778ab6eefa8b9b7102d ; affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 < 9980a3ea20de40c83817877106c909cb032692d2 ; affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 < f00c84fb1635c27ba24ec5df65d5bd7d7dc00008 ; affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 < 1831d4540406708e48239cf38fd9c3b7ea98e08f ; affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 < 42c319635c0cf7eb36eccac6cda76532f47b61a3 ; affected fcf39e6e88e9492f6688ec8ba4e1be622b904232 < a110287ef4a423980309490df632e1c1e73b3dc9
Linux · Linuxaffected 3.19 ; unaffected 0 < 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.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD