[syzbot] [wireless?] memory leak in htc_connect_service

From: syzbot
Date: Fri Feb 24 2023 - 00:14:07 EST

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Hello,

syzbot found the following issue on:

HEAD commit: c9c3395d5e3d Linux 6.2
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16d3dd78c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=eeb87d4dfcdb4cc0
dashboard link: https://syzkaller.appspot.com/bug?extid=b68fbebe56d8362907e8
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=16523630c80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13a3de27480000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/54c384e0e6b1/disk-c9c3395d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c963b4b4fee5/vmlinux-c9c3395d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/fc3ecf1163b5/bzImage-c9c3395d.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+b68fbebe56d8362907e8@xxxxxxxxxxxxxxxxxxxxxxxxx

BUG: memory leak
unreferenced object 0xffff88810a980800 (size 240):
comm "kworker/1:1", pid 24, jiffies 4294947427 (age 16.220s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff83b971c6>] __alloc_skb+0x206/0x270 net/core/skbuff.c:552
[<ffffffff82eb3731>] alloc_skb include/linux/skbuff.h:1270 [inline]
[<ffffffff82eb3731>] htc_connect_service+0x121/0x230 drivers/net/wireless/ath/ath9k/htc_hst.c:259
[<ffffffff82ec03a5>] ath9k_htc_connect_svc drivers/net/wireless/ath/ath9k/htc_drv_init.c:137 [inline]
[<ffffffff82ec03a5>] ath9k_init_htc_services.constprop.0+0xe5/0x390 drivers/net/wireless/ath/ath9k/htc_drv_init.c:157
[<ffffffff82ec0747>] ath9k_htc_probe_device+0xf7/0x8a0 drivers/net/wireless/ath/ath9k/htc_drv_init.c:959
[<ffffffff82eb3ef5>] ath9k_htc_hw_init+0x35/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:521
[<ffffffff82eb68dd>] ath9k_hif_usb_firmware_cb+0xcd/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
[<ffffffff82aa835b>] request_firmware_work_func+0x4b/0x90 drivers/base/firmware_loader/main.c:1107
[<ffffffff8129a35a>] process_one_work+0x2ba/0x5f0 kernel/workqueue.c:2289
[<ffffffff8129ac7d>] worker_thread+0x5d/0x5b0 kernel/workqueue.c:2436
[<ffffffff812a4fa9>] kthread+0x129/0x170 kernel/kthread.c:376
[<ffffffff81002dcf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

BUG: memory leak
unreferenced object 0xffff888100b81a00 (size 512):
comm "kworker/1:1", pid 24, jiffies 4294947427 (age 16.220s)
hex dump (first 32 bytes):
00 00 00 0a 00 00 00 00 00 02 01 02 00 00 02 01 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff81514fab>] __do_kmalloc_node mm/slab_common.c:967 [inline]
[<ffffffff81514fab>] __kmalloc_node_track_caller+0x4b/0x120 mm/slab_common.c:988
[<ffffffff83b970a5>] kmalloc_reserve net/core/skbuff.c:492 [inline]
[<ffffffff83b970a5>] __alloc_skb+0xe5/0x270 net/core/skbuff.c:565
[<ffffffff82eb3731>] alloc_skb include/linux/skbuff.h:1270 [inline]
[<ffffffff82eb3731>] htc_connect_service+0x121/0x230 drivers/net/wireless/ath/ath9k/htc_hst.c:259
[<ffffffff82ec03a5>] ath9k_htc_connect_svc drivers/net/wireless/ath/ath9k/htc_drv_init.c:137 [inline]
[<ffffffff82ec03a5>] ath9k_init_htc_services.constprop.0+0xe5/0x390 drivers/net/wireless/ath/ath9k/htc_drv_init.c:157
[<ffffffff82ec0747>] ath9k_htc_probe_device+0xf7/0x8a0 drivers/net/wireless/ath/ath9k/htc_drv_init.c:959
[<ffffffff82eb3ef5>] ath9k_htc_hw_init+0x35/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:521
[<ffffffff82eb68dd>] ath9k_hif_usb_firmware_cb+0xcd/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
[<ffffffff82aa835b>] request_firmware_work_func+0x4b/0x90 drivers/base/firmware_loader/main.c:1107
[<ffffffff8129a35a>] process_one_work+0x2ba/0x5f0 kernel/workqueue.c:2289
[<ffffffff8129ac7d>] worker_thread+0x5d/0x5b0 kernel/workqueue.c:2436
[<ffffffff812a4fa9>] kthread+0x129/0x170 kernel/kthread.c:376
[<ffffffff81002dcf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

BUG: memory leak
unreferenced object 0xffff88810a88d100 (size 240):
comm "kworker/0:2", pid 2491, jiffies 4294948230 (age 8.190s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff83b971c6>] __alloc_skb+0x206/0x270 net/core/skbuff.c:552
[<ffffffff82eb3731>] alloc_skb include/linux/skbuff.h:1270 [inline]
[<ffffffff82eb3731>] htc_connect_service+0x121/0x230 drivers/net/wireless/ath/ath9k/htc_hst.c:259
[<ffffffff82ec03a5>] ath9k_htc_connect_svc drivers/net/wireless/ath/ath9k/htc_drv_init.c:137 [inline]
[<ffffffff82ec03a5>] ath9k_init_htc_services.constprop.0+0xe5/0x390 drivers/net/wireless/ath/ath9k/htc_drv_init.c:157
[<ffffffff82ec0747>] ath9k_htc_probe_device+0xf7/0x8a0 drivers/net/wireless/ath/ath9k/htc_drv_init.c:959
[<ffffffff82eb3ef5>] ath9k_htc_hw_init+0x35/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:521
[<ffffffff82eb68dd>] ath9k_hif_usb_firmware_cb+0xcd/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
[<ffffffff82aa835b>] request_firmware_work_func+0x4b/0x90 drivers/base/firmware_loader/main.c:1107
[<ffffffff8129a35a>] process_one_work+0x2ba/0x5f0 kernel/workqueue.c:2289
[<ffffffff8129ac7d>] worker_thread+0x5d/0x5b0 kernel/workqueue.c:2436
[<ffffffff812a4fa9>] kthread+0x129/0x170 kernel/kthread.c:376
[<ffffffff81002dcf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

BUG: memory leak
unreferenced object 0xffff88810646b200 (size 512):
comm "kworker/0:2", pid 2491, jiffies 4294948230 (age 8.190s)
hex dump (first 32 bytes):
00 00 00 0a 00 00 00 00 00 02 01 02 00 00 02 01 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff81514fab>] __do_kmalloc_node mm/slab_common.c:967 [inline]
[<ffffffff81514fab>] __kmalloc_node_track_caller+0x4b/0x120 mm/slab_common.c:988
[<ffffffff83b970a5>] kmalloc_reserve net/core/skbuff.c:492 [inline]
[<ffffffff83b970a5>] __alloc_skb+0xe5/0x270 net/core/skbuff.c:565
[<ffffffff82eb3731>] alloc_skb include/linux/skbuff.h:1270 [inline]
[<ffffffff82eb3731>] htc_connect_service+0x121/0x230 drivers/net/wireless/ath/ath9k/htc_hst.c:259
[<ffffffff82ec03a5>] ath9k_htc_connect_svc drivers/net/wireless/ath/ath9k/htc_drv_init.c:137 [inline]
[<ffffffff82ec03a5>] ath9k_init_htc_services.constprop.0+0xe5/0x390 drivers/net/wireless/ath/ath9k/htc_drv_init.c:157
[<ffffffff82ec0747>] ath9k_htc_probe_device+0xf7/0x8a0 drivers/net/wireless/ath/ath9k/htc_drv_init.c:959
[<ffffffff82eb3ef5>] ath9k_htc_hw_init+0x35/0x60 drivers/net/wireless/ath/ath9k/htc_hst.c:521
[<ffffffff82eb68dd>] ath9k_hif_usb_firmware_cb+0xcd/0x1f0 drivers/net/wireless/ath/ath9k/hif_usb.c:1243
[<ffffffff82aa835b>] request_firmware_work_func+0x4b/0x90 drivers/base/firmware_loader/main.c:1107
[<ffffffff8129a35a>] process_one_work+0x2ba/0x5f0 kernel/workqueue.c:2289
[<ffffffff8129ac7d>] worker_thread+0x5d/0x5b0 kernel/workqueue.c:2436
[<ffffffff812a4fa9>] kthread+0x129/0x170 kernel/kthread.c:376
[<ffffffff81002dcf>] ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308

---
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Next message: Stephen Rothwell: "linux-next: duplicate patches in the ntfs3 tree"
Previous message: Xu Yilun: "Re: [PATCH v6 2/2] fpga: zynqmp-fpga: Adds status interface"
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