CVE-2022-50678: wifi: brcmfmac: fix invalid address access when enabling SCAN log level
Noroxi assessment
Priority: Monitor (action score 0/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.25% (FIRST EPSS).
- Fixed version: Linux Linux 1c12d47a9017a7745585b57b9b0fdc0d8c50978e, 4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4, 50e45034c5802cedbf5b707364ea76ace29ad984.
Low priority for now. Upgrade to Linux Linux 1c12d47a9017a7745585b57b9b0fdc0d8c50978e, 4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4, 50e45034c5802cedbf5b707364ea76ace29ad984 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix invalid address access when enabling SCAN log level The variable i is changed when setting random MAC address and causes invalid address access when printing the value of pi->reqs[i]->reqid. We replace reqs index with ri to fix the issue. [ 136.726473] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000000 [ 136.737365] Mem abort info: [ 136.740172] ESR = 0x96000004 [ 136.743359] Exception class = DABT (current EL), IL = 32 bits [ 136.749294] SET = 0, FnV = 0 [ 136.752481] EA = 0, S1PTW = 0 [ 136.755635] Data abort info: [ 136.758514] ISV = 0, ISS = 0x00000004 [ 136.762487] CM = 0, WnR = 0 [ 136.765522] user pgtable: 4k pages, 48-bit VAs, pgdp = 000000005c4e2577 [ 136.772265] [0000000000000000] pgd=0000000000000000 [ 136.777160] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 136.782732] Modules linked in: brcmfmac(O) brcmutil(O) cfg80211(O) compat(O) [ 136.789788] Process wificond (pid: 3175, stack limit = 0x00000000053048fb) [ 136.796664] CPU: 3 PID: 3175 Comm: wificond Tainted: G O 4.19.42-00001-g531a5f5 #1 [ 136.805532] Hardware name: Freescale i.MX8MQ EVK (DT) [ 136.810584] pstate: 60400005 (nZCv daif +PAN -UAO) [ 136.815429] pc : brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac] [ 136.821811] lr : brcmf_pno_config_sched_scans+0x67c/0xa80 [brcmfmac] [ 136.828162] sp : ffff00000e9a3880 [ 136.831475] x29: ffff00000e9a3890 x28: ffff800020543400 [ 136.836786] x27: ffff8000b1008880 x26: ffff0000012bf6a0 [ 136.842098] x25: ffff80002054345c x24: ffff800088d22400 [ 136.847409] x23: ffff0000012bf638 x22: ffff0000012bf6d8 [ 136.852721] x21: ffff8000aced8fc0 x20: ffff8000ac164400 [ 136.858032] x19: ffff00000e9a3946 x18: 0000000000000000 [ 136.863343] x17: 0000000000000000 x16: 0000000000000000 [ 136.868655] x15: ffff0000093f3b37 x14: 0000000000000050 [ 136.873966] x13: 0000000000003135 x12: 0000000000000000 [ 136.879277] x11: 0000000000000000 x10: ffff000009a61888 [ 136.884589] x9 : 000000000000000f x8 : 0000000000000008 [ 136.889900] x7 : 303a32303d726464 x6 : ffff00000a1f957d [ 136.895211] x5 : 0000000000000000 x4 : ffff00000e9a3942 [ 136.900523] x3 : 0000000000000000 x2 : ffff0000012cead8 [ 136.905834] x1 : ffff0000012bf6d8 x0 : 0000000000000000 [ 136.911146] Call trace: [ 136.913623] brcmf_pno_config_sched_scans+0x6cc/0xa80 [brcmfmac] [ 136.919658] brcmf_pno_start_sched_scan+0xa4/0x118 [brcmfmac] [ 136.925430] brcmf_cfg80211_sched_scan_start+0x80/0xe0 [brcmfmac] [ 136.931636] nl80211_start_sched_scan+0x140/0x308 [cfg80211] [ 136.937298] genl_rcv_msg+0x358/0x3f4 [ 136.940960] netlink_rcv_skb+0xb4/0x118 [ 136.944795] genl_rcv+0x34/0x48 [ 136.947935] netlink_unicast+0x264/0x300 [ 136.951856] netlink_sendmsg+0x2e4/0x33c [ 136.955781] __sys_sendto+0x120/0x19c
- Published
- Dec 9, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 17th percentile
- CWE
- —
Report tools
Action score
0
Monitor
Low priority for now.
- CVSS
- 0 / 40 · —
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 4.13affected
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before 7ccb0529446ae68a8581916bfc95c353306d76baaffected · git
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before 1c12d47a9017a7745585b57b9b0fdc0d8c50978eaffected · git
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before 56a0ac48634155d2b866b99fba7e1dd8df4e2804affected · git
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before 50e45034c5802cedbf5b707364ea76ace29ad984affected · git
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before 75995ce1c926ee87bf93d58977c766b4e7744715affected · git
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before 4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4affected · git
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before 826405a911473b6ee8bd2aa891cb2f03a13efa17affected · git
- efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 and later · before aa666b68e73fc06d83c070d96180b9010cf5a960affected · git
- before 4.13not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.0.3-1 | 6.0.3-1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kernel-default | before 4.12.14-122.290.1 | 4.12.14-122.290.1 |
| SUSE:Linux Enterprise Live Patching 12 SP5 | kgraft-patch-SLE12-SP5_Update_76 | before 1-8.7.1 | 1-8.7.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default | before 5.3.18-150300.59.232.1 | 5.3.18-150300.59.232.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-default-base | before 5.3.18-150300.59.232.1.150300.18.138.1 | 5.3.18-150300.59.232.1.150300.18.138.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-rt | before 5.3.18-150300.232.1 | 5.3.18-150300.232.1 |
| SUSE:Linux Enterprise Micro 5.2 | kernel-source-rt | before 5.3.18-150300.232.1 | 5.3.18-150300.232.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-source | before 4.12.14-122.290.1 | 4.12.14-122.290.1 |
| SUSE:Linux Enterprise Server 12 SP5-LTSS | kernel-syms | before 4.12.14-122.290.1 | 4.12.14-122.290.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation40Plan
- CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment40Plan
- CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()40Plan
Published before and after this one in the same product
- ← EarlierCVE-2022-50675Dec 9, 2025 · arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored0Monitor
- ← EarlierCVE-2022-50676Dec 9, 2025 · net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks()30Monitor
- Later →CVE-2022-50679Dec 9, 2025 · i40e: Fix DMA mappings leak0Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 1c12d47a9017a7745585b57b9b0fdc0d8c50978e | Vendor (CNA) |
| Linux Linux | 4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4 | Vendor (CNA) |
| Linux Linux | 50e45034c5802cedbf5b707364ea76ace29ad984 | Vendor (CNA) |
| Linux Linux | 56a0ac48634155d2b866b99fba7e1dd8df4e2804 | Vendor (CNA) |
| Linux Linux | 75995ce1c926ee87bf93d58977c766b4e7744715 | Vendor (CNA) |
| Linux Linux | 7ccb0529446ae68a8581916bfc95c353306d76ba | Vendor (CNA) |
| Linux Linux | 826405a911473b6ee8bd2aa891cb2f03a13efa17 | Vendor (CNA) |
| Linux Linux | aa666b68e73fc06d83c070d96180b9010cf5a960 | Vendor (CNA) |
| debian:linux | 6.0.3-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-default | 4.12.14-122.290.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package registry (OSV) |
| suse:kernel-default-base | 5.3.18-150300.59.232.1.150300.18.138.1 · SUSE:Linux Enterprise Micro 5.2 | Package registry (OSV) |
| suse:kernel-rt | 5.3.18-150300.232.1 · SUSE:Linux Enterprise Micro 5.2 | Package registry (OSV) |
| suse:kernel-source | 4.12.14-122.290.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kernel-source-rt | 5.3.18-150300.232.1 · SUSE:Linux Enterprise Micro 5.2 | Package registry (OSV) |
| suse:kernel-syms | 4.12.14-122.290.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP5_Update_76 | 1-8.7.1 · SUSE:Linux Enterprise Live Patching 12 SP5 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
No CVSS vector for this record, so attack conditions can't be derived.
Weakness class (CWE)
—
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (7 more)Show less
- git.kernel.org/stable/c/4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4
- git.kernel.org/stable/c/50e45034c5802cedbf5b707364ea76ace29ad984
- git.kernel.org/stable/c/56a0ac48634155d2b866b99fba7e1dd8df4e2804
- git.kernel.org/stable/c/75995ce1c926ee87bf93d58977c766b4e7744715
- git.kernel.org/stable/c/7ccb0529446ae68a8581916bfc95c353306d76ba
- git.kernel.org/stable/c/826405a911473b6ee8bd2aa891cb2f03a13efa17
- git.kernel.org/stable/c/aa666b68e73fc06d83c070d96180b9010cf5a960
Vendor advisories and official records. Exploit/PoC links are deliberately left out.