CVE-2022-50066: net: atlantic: fix aq_vec index out of range error
Vulnerability summary
CVE-2022-50066 is a high (CVSS 7.8) Improper Validation of Array Index vulnerability in linux. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 10.2% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 17 · Related 5Timeline
- 18-06-2025PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net: atlantic: fix aq_vec index out of range error The final update statement of the for loop exceeds the array range, the dereference of self->aq_vec[i] is not checked and then leads to the index out of range error. Also fixed this kind of coding style in other for loop. [ 97.937604] UBSAN: array-index-out-of-bounds in drivers/net/ethernet/aquantia/atlantic/aq_nic.c:1404:48 [ 97.937607] index 8 is out of range for type 'aq_vec_s *[8]' [ 97.937608] CPU: 38 PID: 3767 Comm: kworker/u256:18 Not tainted 5.19.0+ #2 [ 97.937610] Hardware name: Dell Inc. Precision 7865 Tower/, BIOS 1.0.0 06/12/2022 [ 97.937611] Workqueue: events_unbound async_run_entry_fn [ 97.937616] Call Trace: [ 97.937617] <TASK> [ 97.937619] dump_stack_lvl+0x49/0x63 [ 97.937624] dump_stack+0x10/0x16 [ 97.937626] ubsan_epilogue+0x9/0x3f [ 97.937627] __ubsan_handle_out_of_bounds.cold+0x44/0x49 [ 97.937629] ? __scm_send+0x348/0x440 [ 97.937632] ? aq_vec_stop+0x72/0x80 [atlantic] [ 97.937639] aq_nic_stop+0x1b6/0x1c0 [atlantic] [ 97.937644] aq_suspend_common+0x88/0x90 [atlantic] [ 97.937648] aq_pm_suspend_poweroff+0xe/0x20 [atlantic] [ 97.937653] pci_pm_suspend+0x7e/0x1a0 [ 97.937655] ? pci_pm_suspend_noirq+0x2b0/0x2b0 [ 97.937657] dpm_run_callback+0x54/0x190 [ 97.937660] __device_suspend+0x14c/0x4d0 [ 97.937661] async_suspend+0x23/0x70 [ 97.937663] async_run_entry_fn+0x33/0x120 [ 97.937664] process_one_work+0x21f/0x3f0 [ 97.937666] worker_thread+0x4a/0x3c0 [ 97.937668] ? process_one_work+0x3f0/0x3f0 [ 97.937669] kthread+0xf0/0x120 [ 97.937671] ? kthread_complete_and_exit+0x20/0x20 [ 97.937672] ret_from_fork+0x22/0x30 [ 97.937676] </TASK> v2. fixed "warning: variable 'aq_vec' set but not used" v3. simplified a for loop
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.20%
Chance of exploitation in the next 30 days
Percentile
10%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.20% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu111 products
- linuxAll versions (No fix recorded) | < 5.15.0-53.59
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1023.27
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 97bde5c4f909a55ab4c36cf0ac9094f6c9e4cdf6, < df60c534d4c5a681172952dd4b475a5d818b3a86 | ≥ 97bde5c4f909a55ab4c36cf0ac9094f6c9e4cdf6, < 422a02a771599cac96f2b2900d993e0bb7ba5b88 | ≥ 97bde5c4f909a55ab4c36cf0ac9094f6c9e4cdf6, < 23bf155476539354ab5c8cc9bb460fd1209b39b5 | ≥ 97bde5c4f909a55ab4c36cf0ac9094f6c9e4cdf6, < 2ba5e47fb75fbb8fab45f5c1bc8d5c33d8834bd3 | 4.11
- linux_kernel≥ 4.11, < 5.10.138 | ≥ 5.11, < 5.15.63 | ≥ 5.16, < 5.19.4
Debian1 product
- linux< 6.0.2-1
3 vendors · 114 products
