LinuxLists.cc - [syzbot] memory leak in cfg80211_inform_single_bss_frame

2021-06-02 16:38:53

Subject: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

Hello,

syzbot found the following issue on:

HEAD commit: b90e90f4 Merge branch 'i2c/for-current' of git://git.kerne..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13bd382fd00000
kernel config: https://syzkaller.appspot.com/x/.config?x=b8c23f7848d1c696
dashboard link: https://syzkaller.appspot.com/bug?extid=7a942657a255a9d9b18a
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=131ce883d00000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]

BUG: memory leak
unreferenced object 0xffff888119584780 (size 96):
comm "kworker/u4:0", pid 8670, jiffies 4295047890 (age 8.810s)
hex dump (first 32 bytes):
fd f0 0a 3d 90 c3 05 00 00 00 00 00 00 00 00 00 ...=............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83e52709>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2376
[<ffffffff83e52c5b>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2437
[<ffffffff83ef1d43>] ieee80211_bss_info_update+0x183/0x470 net/mac80211/scan.c:190
[<ffffffff83eff43b>] ieee80211_rx_bss_info net/mac80211/ibss.c:1126 [inline]
[<ffffffff83eff43b>] ieee80211_rx_mgmt_probe_beacon+0x60b/0x950 net/mac80211/ibss.c:1615
[<ffffffff83effe8c>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1642
[<ffffffff83f01d76>] ieee80211_iface_work+0x476/0x5f0 net/mac80211/iface.c:1437
[<ffffffff8125f9d9>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2276
[<ffffffff812602c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2422
[<ffffffff81267bf8>] kthread+0x178/0x1b0 kernel/kthread.c:313
[<ffffffff810022ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

BUG: memory leak
unreferenced object 0xffff888119584680 (size 96):
comm "kworker/u4:0", pid 8670, jiffies 4295048012 (age 7.590s)
hex dump (first 32 bytes):
f4 b0 1d 3d 90 c3 05 00 00 00 00 00 00 00 00 00 ...=............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83e52709>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2376
[<ffffffff83e52c5b>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2437
[<ffffffff83ef1d43>] ieee80211_bss_info_update+0x183/0x470 net/mac80211/scan.c:190
[<ffffffff83eff43b>] ieee80211_rx_bss_info net/mac80211/ibss.c:1126 [inline]
[<ffffffff83eff43b>] ieee80211_rx_mgmt_probe_beacon+0x60b/0x950 net/mac80211/ibss.c:1615
[<ffffffff83effe8c>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1642
[<ffffffff83f01d76>] ieee80211_iface_work+0x476/0x5f0 net/mac80211/iface.c:1437
[<ffffffff8125f9d9>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2276
[<ffffffff812602c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2422
[<ffffffff81267bf8>] kthread+0x178/0x1b0 kernel/kthread.c:313
[<ffffffff810022ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

BUG: memory leak
unreferenced object 0xffff888119584400 (size 96):
comm "kworker/u4:0", pid 8670, jiffies 4295048012 (age 7.590s)
hex dump (first 32 bytes):
f5 b0 1d 3d 90 c3 05 00 00 00 00 00 00 00 00 00 ...=............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83e52709>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2376
[<ffffffff83e52c5b>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2437
[<ffffffff83ef1d43>] ieee80211_bss_info_update+0x183/0x470 net/mac80211/scan.c:190
[<ffffffff83eff43b>] ieee80211_rx_bss_info net/mac80211/ibss.c:1126 [inline]
[<ffffffff83eff43b>] ieee80211_rx_mgmt_probe_beacon+0x60b/0x950 net/mac80211/ibss.c:1615
[<ffffffff83effe8c>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1642
[<ffffffff83f01d76>] ieee80211_iface_work+0x476/0x5f0 net/mac80211/iface.c:1437
[<ffffffff8125f9d9>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2276
[<ffffffff812602c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2422
[<ffffffff81267bf8>] kthread+0x178/0x1b0 kernel/kthread.c:313
[<ffffffff810022ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

BUG: memory leak
unreferenced object 0xffff8881196dda80 (size 96):
comm "kworker/u4:1", pid 8689, jiffies 4295048023 (age 7.480s)
hex dump (first 32 bytes):
e4 40 1f 3d 90 c3 05 00 00 00 00 00 00 00 00 00 .@.=............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83e52709>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2376
[<ffffffff83e52c5b>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2437
[<ffffffff83ef1d43>] ieee80211_bss_info_update+0x183/0x470 net/mac80211/scan.c:190
[<ffffffff83eff43b>] ieee80211_rx_bss_info net/mac80211/ibss.c:1126 [inline]
[<ffffffff83eff43b>] ieee80211_rx_mgmt_probe_beacon+0x60b/0x950 net/mac80211/ibss.c:1615
[<ffffffff83effe8c>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1642
[<ffffffff83f01d76>] ieee80211_iface_work+0x476/0x5f0 net/mac80211/iface.c:1437
[<ffffffff8125f9d9>] process_one_work+0x2c9/0x600 kernel/workqueue.c:2276
[<ffffffff812602c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2422
[<ffffffff81267bf8>] kthread+0x178/0x1b0 kernel/kthread.c:313
[<ffffffff810022ef>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at [email protected].

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

2021-10-26 02:01:54

by syzbot

[permalink] [raw]

Subject: Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

syzbot has found a reproducer for the following issue on:

HEAD commit: 87066fdd2e30 Revert "mm/secretmem: use refcount_t instead ..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16b55554b00000
kernel config: https://syzkaller.appspot.com/x/.config?x=d25eeb482b0f99b
dashboard link: https://syzkaller.appspot.com/bug?extid=7a942657a255a9d9b18a
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=171cf464b00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1396b19f300000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]

BUG: memory leak
unreferenced object 0xffff88810f3c7980 (size 96):
comm "kworker/u4:0", pid 8, jiffies 4294948721 (age 17.180s)
hex dump (first 32 bytes):
e5 90 aa e8 34 cf 05 00 00 00 00 00 00 00 00 00 ....4...........
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83ee74a9>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2383
[<ffffffff83ee79fb>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2444
[<ffffffff83f8865e>] ieee80211_bss_info_update+0x16e/0x460 net/mac80211/scan.c:190
[<ffffffff83f9687a>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff83f9687a>] ieee80211_rx_mgmt_probe_beacon+0x61a/0x970 net/mac80211/ibss.c:1608
[<ffffffff83f972dc>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1635
[<ffffffff83f99347>] ieee80211_iface_process_skb net/mac80211/iface.c:1439 [inline]
[<ffffffff83f99347>] ieee80211_iface_work+0x5f7/0x770 net/mac80211/iface.c:1493
[<ffffffff81265dbf>] process_one_work+0x2cf/0x620 kernel/workqueue.c:2297
[<ffffffff812666c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2444
[<ffffffff8126fc48>] kthread+0x188/0x1d0 kernel/kthread.c:319
[<ffffffff810022cf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

BUG: memory leak
unreferenced object 0xffff88810f3c7b00 (size 96):
comm "kworker/u4:0", pid 8, jiffies 4294948721 (age 17.180s)
hex dump (first 32 bytes):
f5 90 aa e8 34 cf 05 00 00 00 00 00 00 00 00 00 ....4...........
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83ee74a9>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2383
[<ffffffff83ee79fb>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2444
[<ffffffff83f8865e>] ieee80211_bss_info_update+0x16e/0x460 net/mac80211/scan.c:190
[<ffffffff83f9687a>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff83f9687a>] ieee80211_rx_mgmt_probe_beacon+0x61a/0x970 net/mac80211/ibss.c:1608
[<ffffffff83f972dc>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1635
[<ffffffff83f99347>] ieee80211_iface_process_skb net/mac80211/iface.c:1439 [inline]
[<ffffffff83f99347>] ieee80211_iface_work+0x5f7/0x770 net/mac80211/iface.c:1493
[<ffffffff81265dbf>] process_one_work+0x2cf/0x620 kernel/workqueue.c:2297
[<ffffffff812666c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2444
[<ffffffff8126fc48>] kthread+0x188/0x1d0 kernel/kthread.c:319
[<ffffffff810022cf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

BUG: memory leak
unreferenced object 0xffff88810f3c7680 (size 96):
comm "kworker/u4:1", pid 146, jiffies 4294948731 (age 17.080s)
hex dump (first 32 bytes):
e9 20 ac e8 34 cf 05 00 00 00 00 00 00 00 00 00 . ..4...........
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83ee74a9>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2383
[<ffffffff83ee79fb>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2444
[<ffffffff83f8865e>] ieee80211_bss_info_update+0x16e/0x460 net/mac80211/scan.c:190
[<ffffffff83f9687a>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff83f9687a>] ieee80211_rx_mgmt_probe_beacon+0x61a/0x970 net/mac80211/ibss.c:1608
[<ffffffff83f972dc>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1635
[<ffffffff83f99347>] ieee80211_iface_process_skb net/mac80211/iface.c:1439 [inline]
[<ffffffff83f99347>] ieee80211_iface_work+0x5f7/0x770 net/mac80211/iface.c:1493
[<ffffffff81265dbf>] process_one_work+0x2cf/0x620 kernel/workqueue.c:2297
[<ffffffff812666c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2444
[<ffffffff8126fc48>] kthread+0x188/0x1d0 kernel/kthread.c:319
[<ffffffff810022cf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

BUG: memory leak
unreferenced object 0xffff888111520f80 (size 96):
comm "kworker/u4:1", pid 146, jiffies 4294948731 (age 17.080s)
hex dump (first 32 bytes):
fb 20 ac e8 34 cf 05 00 00 00 00 00 00 00 00 00 . ..4...........
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff83ee74a9>] cfg80211_inform_single_bss_frame_data+0x139/0x640 net/wireless/scan.c:2383
[<ffffffff83ee79fb>] cfg80211_inform_bss_frame_data+0x4b/0x470 net/wireless/scan.c:2444
[<ffffffff83f8865e>] ieee80211_bss_info_update+0x16e/0x460 net/mac80211/scan.c:190
[<ffffffff83f9687a>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff83f9687a>] ieee80211_rx_mgmt_probe_beacon+0x61a/0x970 net/mac80211/ibss.c:1608
[<ffffffff83f972dc>] ieee80211_ibss_rx_queued_mgmt+0x23c/0x6e0 net/mac80211/ibss.c:1635
[<ffffffff83f99347>] ieee80211_iface_process_skb net/mac80211/iface.c:1439 [inline]
[<ffffffff83f99347>] ieee80211_iface_work+0x5f7/0x770 net/mac80211/iface.c:1493
[<ffffffff81265dbf>] process_one_work+0x2cf/0x620 kernel/workqueue.c:2297
[<ffffffff812666c9>] worker_thread+0x59/0x5d0 kernel/workqueue.c:2444
[<ffffffff8126fc48>] kthread+0x188/0x1d0 kernel/kthread.c:319
[<ffffffff810022cf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

2021-10-26 11:18:04

by Fabio M. De Francesco

[permalink] [raw]

Subject: Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

On Tuesday, October 26, 2021 12:33:23 AM CEST syzbot wrote:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 87066fdd2e30 Revert "mm/secretmem: use refcount_t instead
..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=16b55554b00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=d25eeb482b0f99b
> dashboard link: https://syzkaller.appspot.com/bug?
extid=7a942657a255a9d9b18a
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils
for Debian) 2.35.2
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=171cf464b00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1396b19f300000
>
> IMPORTANT: if you fix the issue, please add the following tag to the
commit:
> Reported-by: [email protected]
>
> BUG: memory leak
> unreferenced object 0xffff88810f3c7980 (size 96):

Let's try the attached diff.

Fabio

Attachments:

scan_c_diff (455.00 B)

2022-07-13 08:59:56

by Siddh Raman Pant

[permalink] [raw]

Subject: Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

2022-07-13 09:00:59

by Siddh Raman Pant

[permalink] [raw]

Subject: Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

2022-07-13 09:26:55

by syzbot

[permalink] [raw]

Subject: Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

2022-07-13 10:32:35

by Siddh Raman Pant

[permalink] [raw]

Subject: Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

Syzbot didn't give full log (did it crash?), so trying again.

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

On Wed, 13 Jul 2022 14:38:08 +0530 syzbot <[email protected]> wrote
> Hello,
>
> syzbot has tested the proposed patch but the reproducer is still triggering an issue:
> memory leak in regulatory_init_db
>
> BUG: memory leak
> unreferenced object 0xffff8881450dc880 (size 64):
> comm "swapper/0", pid 1, jiffies 4294937974 (age 80.900s)
> hex dump (first 32 bytes):
> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
> ff ff ff ff 00 00 00 00 00 00 00 00 30 30 00 00 ............00..
> backtrace:
> [<ffffffff86ff026b>] kmalloc include/linux/slab.h:600 [inline]
> [<ffffffff86ff026b>] kzalloc include/linux/slab.h:733 [inline]
> [<ffffffff86ff026b>] regulatory_hint_core net/wireless/reg.c:3216 [inline]
> [<ffffffff86ff026b>] regulatory_init_db+0x22f/0x2de net/wireless/reg.c:4277
> [<ffffffff81000fe3>] do_one_initcall+0x63/0x2e0 init/main.c:1295
> [<ffffffff86f4eb10>] do_initcall_level init/main.c:1368 [inline]
> [<ffffffff86f4eb10>] do_initcalls init/main.c:1384 [inline]
> [<ffffffff86f4eb10>] do_basic_setup init/main.c:1403 [inline]
> [<ffffffff86f4eb10>] kernel_init_freeable+0x255/0x2cf init/main.c:1610
> [<ffffffff845b427a>] kernel_init+0x1a/0x1c0 init/main.c:1499
> [<ffffffff8100225f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
>
> [ 88.
>
>
> Tested on:
>
> commit: b047602d Merge tag 'trace-v5.19-rc5' of git://git.kern..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=13d4252a080000
> kernel config: https://syzkaller.appspot.com/x/.config?x=689b5fe7168a1260
> dashboard link: https://syzkaller.appspot.com/bug?extid=7a942657a255a9d9b18a
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
>
> Note: no patches were applied.
>

2022-07-13 10:37:32

by syzbot

[permalink] [raw]

Subject: Re: [syzbot] memory leak in cfg80211_inform_single_bss_frame_data

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
memory leak in regulatory_init_db

BUG: memory leak
unreferenced object 0xffff888145137a00 (size 64):
comm "swapper/0", pid 1, jiffies 4294937939 (age 68.850s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
ff ff ff ff 00 00 00 00 00 00 00 00 30 30 00 00 ............00..
backtrace:
[<ffffffff86ff026b>] kmalloc include/linux/slab.h:600 [inline]
[<ffffffff86ff026b>] kzalloc include/linux/slab.h:733 [inline]
[<ffffffff86ff026b>] regulatory_hint_core net/wireless/reg.c:3216 [inline]
[<ffffffff86ff026b>] regulatory_init_db+0x22f/0x2de net/wireless/reg.c:4277
[<ffffffff81000fe3>] do_one_initcall+0x63/0x2e0 init/main.c:1295
[<ffffffff86f4eb10>] do_initcall_level init/main.c:1368 [inline]
[<ffffffff86f4eb10>] do_initcalls init/main.c:1384 [inline]
[<ffffffff86f4eb10>] do_basic_setup init/main.c:1403 [inline]
[<ffffffff86f4eb10>] kernel_init_freeable+0x255/0x2cf init/main.c:1610
[<ffffffff845b427a>] kernel_init+0x1a/0x1c0 init/main.c:1499
[<ffffffff8100225f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

BUG: memory leak
unreferenced object 0xffff88810a760180 (size 96):
comm "kworker/u4:2", pid 43, jiffies 4294943904 (age 9.220s)
hex dump (first 32 bytes):
fa fd 93 53 ad e3 05 00 00 00 00 00 00 00 00 00 ...S............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff840740b6>] cfg80211_inform_single_bss_frame_data+0x186/0x6a0 net/wireless/scan.c:2445
[<ffffffff8407461b>] cfg80211_inform_bss_frame_data+0x4b/0x460 net/wireless/scan.c:2506
[<ffffffff84115816>] ieee80211_bss_info_update+0x196/0x440 net/mac80211/scan.c:190
[<ffffffff841240e2>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff841240e2>] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
[<ffffffff841240e2>] ieee80211_ibss_rx_queued_mgmt+0x7d2/0x11a0 net/mac80211/ibss.c:1639
[<ffffffff84126b81>] ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
[<ffffffff84126b81>] ieee80211_iface_work+0x601/0x780 net/mac80211/iface.c:1581
[<ffffffff8127130f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2289
[<ffffffff81271c39>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2436
[<ffffffff8127b955>] kthread+0x125/0x160 kernel/kthread.c:376
[<ffffffff8100225f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

BUG: memory leak
unreferenced object 0xffff88810a760100 (size 96):
comm "kworker/u4:0", pid 8, jiffies 4294943986 (age 8.400s)
hex dump (first 32 bytes):
36 80 a0 53 ad e3 05 00 00 00 00 00 00 00 00 00 6..S............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff840740b6>] cfg80211_inform_single_bss_frame_data+0x186/0x6a0 net/wireless/scan.c:2445
[<ffffffff8407461b>] cfg80211_inform_bss_frame_data+0x4b/0x460 net/wireless/scan.c:2506
[<ffffffff84115816>] ieee80211_bss_info_update+0x196/0x440 net/mac80211/scan.c:190
[<ffffffff841240e2>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff841240e2>] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
[<ffffffff841240e2>] ieee80211_ibss_rx_queued_mgmt+0x7d2/0x11a0 net/mac80211/ibss.c:1639
[<ffffffff84126b81>] ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
[<ffffffff84126b81>] ieee80211_iface_work+0x601/0x780 net/mac80211/iface.c:1581
[<ffffffff8127130f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2289
[<ffffffff81271c39>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2436
[<ffffffff8127b955>] kthread+0x125/0x160 kernel/kthread.c:376
[<ffffffff8100225f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

BUG: memory leak
unreferenced object 0xffff888114cb9100 (size 96):
comm "kworker/u4:3", pid 53, jiffies 4294944017 (age 8.090s)
hex dump (first 32 bytes):
95 32 a5 53 ad e3 05 00 00 00 00 00 00 00 00 00 .2.S............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff840740b6>] cfg80211_inform_single_bss_frame_data+0x186/0x6a0 net/wireless/scan.c:2445
[<ffffffff8407461b>] cfg80211_inform_bss_frame_data+0x4b/0x460 net/wireless/scan.c:2506
[<ffffffff84115816>] ieee80211_bss_info_update+0x196/0x440 net/mac80211/scan.c:190
[<ffffffff841240e2>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff841240e2>] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
[<ffffffff841240e2>] ieee80211_ibss_rx_queued_mgmt+0x7d2/0x11a0 net/mac80211/ibss.c:1639
[<ffffffff84126b81>] ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
[<ffffffff84126b81>] ieee80211_iface_work+0x601/0x780 net/mac80211/iface.c:1581
[<ffffffff8127130f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2289
[<ffffffff81271c39>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2436
[<ffffffff8127b955>] kthread+0x125/0x160 kernel/kthread.c:376
[<ffffffff8100225f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

BUG: memory leak
unreferenced object 0xffff888114afa500 (size 96):
comm "kworker/u4:3", pid 53, jiffies 4294944037 (age 7.890s)
hex dump (first 32 bytes):
1c 46 a8 53 ad e3 05 00 00 00 00 00 00 00 00 00 .F.S............
00 00 00 00 00 00 00 00 28 00 00 00 01 00 06 10 ........(.......
backtrace:
[<ffffffff840740b6>] cfg80211_inform_single_bss_frame_data+0x186/0x6a0 net/wireless/scan.c:2445
[<ffffffff8407461b>] cfg80211_inform_bss_frame_data+0x4b/0x460 net/wireless/scan.c:2506
[<ffffffff84115816>] ieee80211_bss_info_update+0x196/0x440 net/mac80211/scan.c:190
[<ffffffff841240e2>] ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
[<ffffffff841240e2>] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
[<ffffffff841240e2>] ieee80211_ibss_rx_queued_mgmt+0x7d2/0x11a0 net/mac80211/ibss.c:1639
[<ffffffff84126b81>] ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
[<ffffffff84126b81>] ieee80211_iface_work+0x601/0x780 net/mac80211/iface.c:1581
[<ffffffff8127130f>] process_one_work+0x2bf/0x600 kernel/workqueue.c:2289
[<ffffffff81271c39>] worker_thread+0x59/0x5b0 kernel/workqueue.c:2436
[<ffffffff8127b955>] kthread+0x125/0x160 kernel/kthread.c:376
[<ffffffff8100225f>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306

[ 75.59820

Tested on:

commit: b047602d Merge tag 'trace-v5.19-rc5' of git://git.kern..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10cfa478080000
kernel config: https://syzkaller.appspot.com/x/.config?x=689b5fe7168a1260
dashboard link: https://syzkaller.appspot.com/bug?extid=7a942657a255a9d9b18a
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2

Note: no patches were applied.