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

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00036.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< 7ccb0529446ae68a8581916bfc95c353306d76ba
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< 1c12d47a9017a7745585b57b9b0fdc0d8c50978e
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< 56a0ac48634155d2b866b99fba7e1dd8df4e2804
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< 50e45034c5802cedbf5b707364ea76ace29ad984
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< 75995ce1c926ee87bf93d58977c766b4e7744715
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< 4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< 826405a911473b6ee8bd2aa891cb2f03a13efa17
efc2c1fa8e145b60a7805fa9b6c92ac0746fccc3 affected
< aa666b68e73fc06d83c070d96180b9010cf5a960
Linux Linux affected
Version Status Constraints
4.13 affected
—
0 unaffected
< 4.13
4.14.296 unaffected
≤ 4.14.*
4.19.262 unaffected
≤ 4.19.*
5.4.220 unaffected
≤ 5.4.*
5.10.150 unaffected
≤ 5.10.*
5.15.75 unaffected
≤ 5.15.*
5.19.17 unaffected
≤ 5.19.*
6.0.3 unaffected
≤ 6.0.*
6.1 unaffected
≤ *

No data.

No data.

No data.

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1c12d47a9017a7745585b57b9b0fdc0d8c50978e cve-icon cve-icon
https://git.kernel.org/stable/c/4d4dcfa6b4e85a878401f4fbae4cafc88cdcceb4 cve-icon cve-icon
https://git.kernel.org/stable/c/50e45034c5802cedbf5b707364ea76ace29ad984 cve-icon cve-icon
https://git.kernel.org/stable/c/56a0ac48634155d2b866b99fba7e1dd8df4e2804 cve-icon cve-icon
https://git.kernel.org/stable/c/75995ce1c926ee87bf93d58977c766b4e7744715 cve-icon cve-icon
https://git.kernel.org/stable/c/7ccb0529446ae68a8581916bfc95c353306d76ba cve-icon cve-icon
https://git.kernel.org/stable/c/826405a911473b6ee8bd2aa891cb2f03a13efa17 cve-icon cve-icon
https://git.kernel.org/stable/c/aa666b68e73fc06d83c070d96180b9010cf5a960 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025120949-CVE-2022-50678-53a4@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-50678 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-50678 cve-icon
History

Wed, 10 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Tue, 09 Dec 2025 02:00:00 +0000

Type Values Removed Values Added
Description 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
Title wifi: brcmfmac: fix invalid address access when enabling SCAN log level
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-23T13:30:31.837Z

Reserved: 2025-12-09T01:26:45.991Z

Link: CVE-2022-50678

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-09T16:17:20.083

Modified: 2025-12-09T18:37:13.640

Link: CVE-2022-50678

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-12-09T00:00:00Z

Links: CVE-2022-50678 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.