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memory leak in htc_connect_service

Status: fixed on 2023/09/28 17:51
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+b68fbebe56d8362907e8@syzkaller.appspotmail.com
Fix commit: 061b0cb9327b wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes
First crash: 642d, last: 557d
▶ ▼ Discussions (4)
Title Replies (including bot) Last reply
[PATCH] wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes 5 (5) 2023/05/25 17:04
[PATCH] wifi: ath9k: Fix memory leak in htc_connect_service 3 (3) 2023/05/13 21:12
[PATCH] [net] Fix memory leak in htc_connect_service 3 (3) 2023/05/05 14:03
[syzbot] [wireless?] memory leak in htc_connect_service 0 (1) 2023/02/24 05:14
▶ ▼ Last patch testing requests (2)
Created Duration User Patch Repo Result
2023/05/16 07:23 16m retest repro upstream report log
2023/05/05 06:32 33m jeantsuru.cumc.mandola@gmail.com patch git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git c9c3395d5e3d OK log

Sample crash report:
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

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/02/20 05:07 upstream c9c3395d5e3d bcdf85f8 .config console log report syz C ci-upstream-gce-leak memory leak in htc_connect_service
* Struck through repros no longer work on HEAD.