nfc: fix segfault in nfc_genl_dump_devices_done (Linux Linux)

CVE-2021-47612
MEDIUM 5.5

At a glance

Source
NVD
EPSS
EPSS 0.22 % · percentile 13 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: fix segfault in nfc_genl_dump_devices_done When kmalloc in nfc_genl_dump_devices() fails then nfc_genl_dump_devices_done() segfaults as below KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 25 Comm: kworker/0:1 Not tainted 5.16.0-rc4-01180-g2a987e65025e-dirty #5 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-6.fc35 04/01/2014 Workqueue: events netlink_sock_destruct_work RIP: 0010:klist_iter_exit+0x26/0x80 Call Trace: <TASK> class_dev_iter_exit+0x15/0x20 nfc_genl_dump_devices_done+0x3b/0x50 genl_lock_done+0x84/0xd0 netlink_sock_destruct+0x8f/0x270 __sk_destruct+0x64/0x3b0 sk_destruct+0xa8/0xd0 __sk_free+0x2e8/0x3d0 sk_free+0x51/0x90 netlink_sock_destruct_work+0x1c/0x20 process_one_work+0x411/0x710 worker_thread+0x6fd/0xa80

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 4d12b8b129f170d0fc3188de1e51a2a1b0f87730 < ea55b3797878752aa076b118afb727dcf79cac34 ; affected 4d12b8b129f170d0fc3188de1e51a2a1b0f87730 < 214af18abbe39db05beb305b2d11e87d09a6529c ; affected 4d12b8b129f170d0fc3188de1e51a2a1b0f87730 < 6644989642844de830f9b072cd65c553cb55946c ; affected 4d12b8b129f170d0fc3188de1e51a2a1b0f87730 < 2a8845b9603c545fddd17862282dc4c4ce0971e3 ; affected 4d12b8b129f170d0fc3188de1e51a2a1b0f87730 < d731ecc6f2eaec68f4ad1542283bbc7d07bd0112 ; affected 4d12b8b129f170d0fc3188de1e51a2a1b0f87730 < c602863ad28ec86794cb4ab4edea5324f555f181
Linux · Linuxaffected 3.1 ; unaffected 0 < 3.1 ; unaffected 4.4.296 ≤ 4.4.* ; unaffected 4.9.294 ≤ 4.9.* ; unaffected 4.14.259 ≤ 4.14.* ; unaffected 4.19.222 ≤ 4.19.*

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