CVE-2022-48875

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2024-08-21. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: sdata can be NULL during AMPDU start

ieee80211_tx_ba_session_handle_start() may get NULL for sdata when a deauthentication is ongoing.

Here a trace triggering the race with the hostapd test multi_ap_fronthaul_on_ap:

(gdb) list *drv_ampdu_action+0x46 0x8b16 is in drv_ampdu_action (net/mac80211/driver-ops.c:396). 391 int ret = -EOPNOTSUPP; 392 393 might_sleep(); 394 395 sdata = get_bss_sdata(sdata); 396 if (!check_sdata_in_driver(sdata)) 397 return -EIO; 398 399 trace_drv_ampdu_action(local, sdata, params); 400

wlan0: moving STA 02:00:00:00:03:00 to state 3 wlan0: associated wlan0: deauthenticating from 02:00:00:00:03:00 by local choice (Reason: 3=DEAUTH_LEAVING) wlan3.sta1: Open BA session requested for 02:00:00:00:00:00 tid 0 wlan3.sta1: dropped frame to 02:00:00:00:00:00 (unauthorized port) wlan0: moving STA 02:00:00:00:03:00 to state 2 wlan0: moving STA 02:00:00:00:03:00 to state 1 wlan0: Removed STA 02:00:00:00:03:00 wlan0: Destroyed STA 02:00:00:00:03:00 BUG: unable to handle page fault for address: fffffffffffffb48 PGD 11814067 P4D 11814067 PUD 11816067 PMD 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 2 PID: 133397 Comm: kworker/u16:1 Tainted: G W 6.1.0-rc8-wt+ #59 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014 Workqueue: phy3 ieee80211_ba_session_work [mac80211] RIP: 0010:drv_ampdu_action+0x46/0x280 [mac80211] Code: 53 48 89 f3 be 89 01 00 00 e8 d6 43 bf ef e8 21 46 81 f0 83 bb a0 1b 00 00 04 75 0e 48 8b 9b 28 0d 00 00 48 81 eb 10 0e 00 00 <8b> 93 58 09 00 00 f6 c2 20 0f 84 3b 01 00 00 8b 05 dd 1c 0f 00 85 RSP: 0018:ffffc900025ebd20 EFLAGS: 00010287 RAX: 0000000000000000 RBX: fffffffffffff1f0 RCX: ffff888102228240 RDX: 0000000080000000 RSI: ffffffff918c5de0 RDI: ffff888102228b40 RBP: ffffc900025ebd40 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888118c18ec0 R13: 0000000000000000 R14: ffffc900025ebd60 R15: ffff888018b7efb8 FS: 0000000000000000(0000) GS:ffff88817a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffb48 CR3: 0000000105228006 CR4: 0000000000170ee0 Call Trace: ieee80211_tx_ba_session_handle_start+0xd0/0x190 [mac80211] ieee80211_ba_session_work+0xff/0x2e0 [mac80211] process_one_work+0x29f/0x620 worker_thread+0x4d/0x3d0 ? process_one_work+0x620/0x620 kthread+0xfb/0x120 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 21, 2024

Last Modified

September 4, 2024

References (4)

Patch Availability(22)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-lts-xenial (4.4.0.278.284) @ xenial2026-05-23ubuntu
ubuntulinux-virtual-lts-xenial (4.4.0.278.312~14.04.1) @ trusty2026-05-23ubuntu
ubuntulinux-tools-ibm-edge (5.4.0.1102.107~18.04.1) @ bionic2026-05-23ubuntu
ubuntulinux-tools-azure-edge (4.15.0.1197.212~16.04.1) @ xenial2026-05-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1074 (5.4.0-1074.78) @ focal2026-05-23ubuntu
ubuntulinux-tools-gcp-fips-4.15 (4.15.0.2090.88) @ bionic2026-05-23ubuntu
ubuntulinux-virtual-hwe-16.04-edge (4.15.0.247.259~16.04.1) @ xenial2026-05-23ubuntu
ubuntulinux-tools-azure-fips-4.15 (4.15.0.2106.102) @ bionic2026-05-23ubuntu
ubuntulinux-tools-fips (4.4.0.1122.123) @ xenial2026-05-23ubuntu
ubuntulinux-tools-gcp-lts-20.04 (5.4.0.1159.161) @ focal2026-05-23ubuntu
ubuntulinux-tools-kvm-5.4 (5.4.0.1143.139) @ focal2026-05-23ubuntu
ubuntulinux-tools-aws-fips-5.4 (5.4.0.1155.102) @ focal2026-05-23ubuntu
ubuntulinux-tools-azure (4.15.0.1197.212~14.04.1) @ trusty2026-05-23ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.227.219) @ focal2026-05-23ubuntu
ubuntulinux-tools-ibm-lts-20.04 (5.4.0.1102.131) @ focal2026-05-23ubuntu
ubuntulinux-tools-gcp-fips-5.4 (5.4.0.1159.101) @ focal2026-05-23ubuntu
ubuntulinux-tools-azure-lts-20.04 (5.4.0.1160.153) @ focal2026-05-23ubuntu
ubuntulinux-tools-azure-fips-5.4 (5.4.0.1160.97) @ focal2026-05-23ubuntu
ubuntulinux-tools-azure-edge (5.4.0.1161.167~18.04.1) @ bionic2026-05-23ubuntu
ubuntulinux-tools-bluefield-5.4 (5.4.0.1116.112) @ focal2026-05-23ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1139.170) @ focal2026-05-23ubuntu
linuxKernel @ 5.10.165—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(21)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 111 total refreshes for this CVE.

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Frequently asked(5)

What is CVE-2022-48875?
CVE-2022-48875 is a medium vulnerability published on August 21, 2024. In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: sdata can be NULL during AMPDU start ieee80211txbasessionhandle_start() may get NULL for sdata when a deauthentication is ongoing. Here a trace triggering the race with the hostapd test multiapfronthaulonap: (gdb)…
When was CVE-2022-48875 disclosed?
CVE-2022-48875 was first published in the National Vulnerability Database on August 21, 2024, with the most recent update on September 4, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-48875 actively exploited?
CVE-2022-48875 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 84.2% of all scored CVEs.
What is the CVSS score of CVE-2022-48875?
CVE-2022-48875 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2022-48875?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-48875, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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