CVE-2022-50178
published 2025-06-18CVE-2022-50178: In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: 8852a: rfk: fix div 0 exception The DPK is a kind of RF calibration whose…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.20%
10.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: 8852a: rfk: fix div 0 exception
The DPK is a kind of RF calibration whose algorithm is to fine tune
parameters and calibrate, and check the result. If the result isn't good
enough, it could adjust parameters and try again.
This issue is to read and show the result, but it could be a negative
calibration result that causes divisor 0 and core dump. So, fix it by
phy_div() that does division only if divisor isn't zero; otherwise,
zero is adopted.
divide error: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 728 Comm: wpa_supplicant Not tainted 5.10.114-16019-g462a1661811a #1
RIP: 0010:rtw8852a_dpk+0x14ae/0x288f [rtw89_core]
RSP: 0018:ffffa9bb412a7520 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00000000000180fc RDI: ffffa141d01023c0
RBP: ffffa9bb412a76a0 R08: 0000000000001319 R09: 00000000ffffff92
R10: ffffffffc0292de3 R11: ffffffffc00d2f51 R12: 0000000000000000
R13: ffffa141d01023c0 R14: ffffffffc0290250 R15: ffffa141d0102638
FS: 00007fa99f5c2740(0000) GS:ffffa142e5e80000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000013e8e010 CR3: 0000000110d2c000 CR4: 0000000000750ee0
PKRU: 55555554
Call Trace:
rtw89_core_sta_add+0x95/0x9c [rtw89_core ]
rtw89_ops_sta_state+0x5d/0x108 [rtw89_core ]
drv_sta_state+0x115/0x66f [mac80211 ]
sta_info_insert_rcu+0x45c/0x713 [mac80211 ]
sta_info_insert+0xf/0x1b [mac80211 ]
ieee80211_prep_connection+0x9d6/0xb0c [mac80211 ]
ieee80211_mgd_auth+0x2aa/0x352 [mac80211 ]
cfg80211_mlme_auth+0x160/0x1f6 [cfg80211 ]
nl80211_authenticate+0x2e5/0x306 [cfg80211 ]
genl_rcv_msg+0x371/0x3a1
? nl80211_stop_sched_scan+0xe5/0xe5 [cfg80211 ]
? genl_rcv+0x36/0x36
netlink_rcv_skb+0x8a/0xf9
genl_rcv+0x28/0x36
netlink_unicast+0x27b/0x3a0
netlink_sendmsg+0x2aa/0x469
sock_sendmsg_nosec+0x49/0x4d
____sys_sendmsg+0xe5/0x213
__sys_sendmsg+0xec/0x157
? syscall_enter_from_user_mode+0xd7/0x
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.2-1 (bookworm) | linux 6.0.2-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < 065e83ac83c0c0e615b96947145c85c4bd76c09a | 065e83ac83c0c0e615b96947145c85c4bd76c09a |
| linux | linux | >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < 5abc81a138f873ab55223ec674afc3a3f945d60f | 5abc81a138f873ab55223ec674afc3a3f945d60f |
| linux | linux | >= e3ec7017f6a20d12ddd9fe23d345ebb7b8c104dd < 683a4647a7a3044868cfdc14c117525091b9fa0c | 683a4647a7a3044868cfdc14c117525091b9fa0c |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 5.16 < 5.18.18 | 5.18.18 |
| linux | linux_kernel | >= 5.19 < 5.19.2 | 5.19.2 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-3wj6-j9c9-3mmg: In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: 8852a: rfk: fix div 0 exception
The DPK is a kind of RF calibration
ghsa_unreviewed·2025-06-18
CVE-2022-50178 [MEDIUM] CWE-369 GHSA-3wj6-j9c9-3mmg: In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: 8852a: rfk: fix div 0 exception
The DPK is a kind of RF calibration
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: 8852a: rfk: fix div 0 exception
The DPK is a kind of RF calibration whose algorithm is to fine tune
parameters and calibrate, and check the result. If the result isn't good
enough, it could adjust parameters and try again.
This issue is to read and show the result, but it could be a negative
calibration result that causes divisor 0 and core dump. So, fix it by
phy_div() that does division only if divisor isn't zero; otherwise,
zero is adopted.
divide error: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 728 Comm: wpa_supplicant Not tainted 5.10.114-16019-g462a1661811a #1
RIP: 0010:rtw8852a_dpk+0x14ae/0x288f [rtw89_core]
RSP: 0018:ffffa9bb412a7520 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0
OSV
CVE-2022-50178: In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: 8852a: rfk: fix div 0 exception The DPK is a kind of RF calibration w
osv·2025-06-18·CVSS 5.5
CVE-2022-50178 [MEDIUM] CVE-2022-50178: In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: 8852a: rfk: fix div 0 exception The DPK is a kind of RF calibration w
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: 8852a: rfk: fix div 0 exception The DPK is a kind of RF calibration whose algorithm is to fine tune parameters and calibrate, and check the result. If the result isn't good enough, it could adjust parameters and try again. This issue is to read and show the result, but it could be a negative calibration result that causes divisor 0 and core dump. So, fix it by phy_div() that does division only if divisor isn't zero; otherwise, zero is adopted. divide error: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 728 Comm: wpa_supplicant Not tainted 5.10.114-16019-g462a1661811a #1 RIP: 0010:rtw8852a_dpk+0x14ae/0x288f [rtw89_core] RSP: 0018:ffffa9bb412a7520 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000
Red Hat
kernel: wifi: rtw89: 8852a: rfk: fix div 0 exception
vendor_redhat·2025-06-18·CVSS 5.5
CVE-2022-50178 [MEDIUM] kernel: wifi: rtw89: 8852a: rfk: fix div 0 exception
kernel: wifi: rtw89: 8852a: rfk: fix div 0 exception
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtw89: 8852a: rfk: fix div 0 exception
The DPK is a kind of RF calibration whose algorithm is to fine tune
parameters and calibrate, and check the result. If the result isn't good
enough, it could adjust parameters and try again.
This issue is to read and show the result, but it could be a negative
calibration result that causes divisor 0 and core dump. So, fix it by
phy_div() that does division only if divisor isn't zero; otherwise,
zero is adopted.
divide error: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 728 Comm: wpa_supplicant Not tainted 5.10.114-16019-g462a1661811a #1
RIP: 0010:rtw8852a_dpk+0x14ae/0x288f [rtw89_core]
RSP: 0018:ffffa9bb412a7520 EFLAGS: 00010246
Debian
CVE-2022-50178: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89...
vendor_debian·2022·CVSS 5.5
CVE-2022-50178 [MEDIUM] CVE-2022-50178: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89...
In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: 8852a: rfk: fix div 0 exception The DPK is a kind of RF calibration whose algorithm is to fine tune parameters and calibrate, and check the result. If the result isn't good enough, it could adjust parameters and try again. This issue is to read and show the result, but it could be a negative calibration result that causes divisor 0 and core dump. So, fix it by phy_div() that does division only if divisor isn't zero; otherwise, zero is adopted. divide error: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 728 Comm: wpa_supplicant Not tainted 5.10.114-16019-g462a1661811a #1 RIP: 0010:rtw8852a_dpk+0x14ae/0x288f [rtw89_core] RSP: 0018:ffffa9bb412a7520 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000
No detection rules found.
No public exploits indexed.
2025-06-18
Published