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THREATINT
PUBLISHED

CVE-2022-49022

wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration



Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration Fix possible out-of-bound access in ieee80211_get_rate_duration routine as reported by the following UBSAN report: UBSAN: array-index-out-of-bounds in net/mac80211/airtime.c:455:47 index 15 is out of range for type 'u16 [12]' CPU: 2 PID: 217 Comm: kworker/u32:10 Not tainted 6.1.0-060100rc3-generic Hardware name: Acer Aspire TC-281/Aspire TC-281, BIOS R01-A2 07/18/2017 Workqueue: mt76 mt76u_tx_status_data [mt76_usb] Call Trace: <TASK> show_stack+0x4e/0x61 dump_stack_lvl+0x4a/0x6f dump_stack+0x10/0x18 ubsan_epilogue+0x9/0x43 __ubsan_handle_out_of_bounds.cold+0x42/0x47 ieee80211_get_rate_duration.constprop.0+0x22f/0x2a0 [mac80211] ? ieee80211_tx_status_ext+0x32e/0x640 [mac80211] ieee80211_calc_rx_airtime+0xda/0x120 [mac80211] ieee80211_calc_tx_airtime+0xb4/0x100 [mac80211] mt76x02_send_tx_status+0x266/0x480 [mt76x02_lib] mt76x02_tx_status_data+0x52/0x80 [mt76x02_lib] mt76u_tx_status_data+0x67/0xd0 [mt76_usb] process_one_work+0x225/0x400 worker_thread+0x50/0x3e0 ? process_one_work+0x400/0x400 kthread+0xe9/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30

Reserved 2024-08-22 | Published 2024-10-21 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

db3e1c40cf2f973fbdd52ae0b59a9472b1c04f4a before 0184ede0ec61b9cd075babfaa45081b1bf322234
affected

db3e1c40cf2f973fbdd52ae0b59a9472b1c04f4a before 59b54f0563b6546c94bdb6823d3b382c75407019
affected

db3e1c40cf2f973fbdd52ae0b59a9472b1c04f4a before f0fcad4c7201ecfaa17357f4ce0c50b4708df22d
affected

db3e1c40cf2f973fbdd52ae0b59a9472b1c04f4a before 3e8f7abcc3473bc9603323803aeaed4ffcc3a2ab
affected

Default status
affected

5.5
affected

Any version before 5.5
unaffected

5.10.158
unaffected

5.15.82
unaffected

6.0.12
unaffected

6.1
unaffected

References

git.kernel.org/...c/0184ede0ec61b9cd075babfaa45081b1bf322234

git.kernel.org/...c/59b54f0563b6546c94bdb6823d3b382c75407019

git.kernel.org/...c/f0fcad4c7201ecfaa17357f4ce0c50b4708df22d

git.kernel.org/...c/3e8f7abcc3473bc9603323803aeaed4ffcc3a2ab

cve.org (CVE-2022-49022)

nvd.nist.gov (CVE-2022-49022)

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