===================================================== BUG: KMSAN: uninit-value in skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 CPU: 0 PID: 10007 Comm: systemd-udevd Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 ath9k_htc_rx_msg+0x631/0x1f60 drivers/net/wireless/ath/ath9k/htc_hst.c:455 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:647 [inline] ath9k_hif_usb_rx_cb+0x184e/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422 irq_exit_rcu+0xe/0x10 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650 RIP: 0010:__nr_to_section include/linux/mmzone.h:1301 [inline] RIP: 0010:pfn_valid include/linux/mmzone.h:1419 [inline] RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:87 [inline] RIP: 0010:virt_to_page_or_null+0x56/0xf0 mm/kmsan/kmsan_shadow.c:125 Code: 89 d6 48 d3 ee 48 85 f6 75 44 48 89 d1 48 c1 e9 2e 75 3b 48 8b 0d aa 20 67 0f 48 85 c9 74 2f 48 89 d6 48 c1 ee 23 4c 8b 0c f1 <4d> 85 c9 74 1f 48 89 d1 48 c1 e9 1b 0f b6 f1 48 c1 e6 04 4c 89 c9 RSP: 0018:ffff88802e5b78a8 EFLAGS: 00000246 RAX: ffff88819c015218 RBX: ffff88811c015218 RCX: ffff88823fff4000 RDX: 000000011c015218 RSI: 0000000000000000 RDI: ffff88811c015218 RBP: ffff88802e5b78a8 R08: ffffea000000000f R09: ffff88813fffa000 R10: 0000000000000003 R11: ffff88802e5c9f40 R12: ffff88802e5b7ad8 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:190 kmsan_get_shadow_origin_ptr+0x84/0xb0 mm/kmsan/kmsan_shadow.c:150 __msan_metadata_ptr_for_load_2+0x10/0x20 mm/kmsan/kmsan_instr.c:53 tomoyo_check_path_acl+0x64/0x360 security/tomoyo/file.c:258 tomoyo_check_acl+0x249/0x5d0 security/tomoyo/domain.c:175 tomoyo_path_permission security/tomoyo/file.c:586 [inline] tomoyo_path_perm+0x82f/0xc50 security/tomoyo/file.c:838 tomoyo_inode_getattr+0x54/0x60 security/tomoyo/tomoyo.c:123 security_inode_getattr+0x141/0x280 security/security.c:1288 vfs_getattr fs/stat.c:131 [inline] vfs_statx+0x29c/0x890 fs/stat.c:199 vfs_fstatat fs/stat.c:217 [inline] vfs_stat include/linux/fs.h:3236 [inline] __do_sys_newstat fs/stat.c:359 [inline] __se_sys_newstat+0xce/0x920 fs/stat.c:355 __x64_sys_newstat+0x3e/0x60 fs/stat.c:355 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb4930a1295 Code: 00 00 00 e8 5d 01 00 00 48 83 c4 18 c3 0f 1f 84 00 00 00 00 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 04 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 d1 db 2b 00 f7 d8 64 89 RSP: 002b:00007ffee68b9e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 00005618cbf87320 RCX: 00007fb4930a1295 RDX: 00007ffee68b9e10 RSI: 00007ffee68b9e10 RDI: 00007ffee68b9ec0 RBP: 00007ffee68b9f30 R08: 000000000000c0c1 R09: 0000000000000000 R10: 00007ffee68b9f40 R11: 0000000000000246 R12: 00007ffee68b9f40 R13: 0000000000000001 R14: 00005618cbf878d0 R15: 000000000000000e Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] __kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609 kmalloc_reserve net/core/skbuff.c:353 [inline] __alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424 __netdev_alloc_skb+0x45d/0x810 net/core/skbuff.c:491 __dev_alloc_skb include/linux/skbuff.h:2871 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:629 [inline] ath9k_hif_usb_rx_cb+0xe58/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 ===================================================== ===================================================== BUG: KMSAN: uninit-value in skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 CPU: 0 PID: 9961 Comm: systemd-udevd Tainted: G B 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 ath9k_htc_rx_msg+0x631/0x1f60 drivers/net/wireless/ath/ath9k/htc_hst.c:455 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:647 [inline] ath9k_hif_usb_rx_cb+0x184e/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422 irq_exit_rcu+0xe/0x10 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650 RIP: 0010:pfn_valid include/linux/mmzone.h:1420 [inline] RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:87 [inline] RIP: 0010:virt_to_page_or_null+0x74/0xf0 mm/kmsan/kmsan_shadow.c:125 Code: 2f 48 89 d6 48 c1 ee 23 4c 8b 0c f1 4d 85 c9 74 1f 48 89 d1 48 c1 e9 1b 0f b6 f1 48 c1 e6 04 4c 89 c9 48 01 f1 74 09 4c 8b 01 <41> f6 c0 02 75 04 31 c0 5d c3 41 f6 c0 08 75 12 48 c1 ea 15 49 8b RSP: 0018:ffff888017f733f8 EFLAGS: 00000282 RAX: ffff8881a1781d3a RBX: ffff888121781d3a RCX: ffff88813fffa240 RDX: 0000000121781d3a RSI: 0000000000000240 RDI: ffff888121781d3a RBP: ffff888017f733f8 R08: ffffea000000000f R09: ffff88813fffa000 R10: 0000000000000007 R11: ffff888134f3ddc0 R12: 0000000000000000 R13: ffff888134f3e848 R14: 0000000000000000 R15: 0000000000000000 kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:190 kmsan_get_shadow_origin_ptr+0x6f/0xb0 mm/kmsan/kmsan_shadow.c:145 __msan_metadata_ptr_for_load_1+0x10/0x20 mm/kmsan/kmsan_instr.c:52 tomoyo_domain_quota_is_ok+0x32c/0x920 security/tomoyo/util.c:1084 tomoyo_supervisor+0x744/0x2730 security/tomoyo/common.c:2089 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline] tomoyo_path_number_perm+0x88b/0xaf0 security/tomoyo/file.c:734 tomoyo_path_mknod+0x2d2/0x370 security/tomoyo/tomoyo.c:240 security_path_mknod+0x1cf/0x310 security/security.c:1087 may_o_create fs/namei.c:3038 [inline] lookup_open fs/namei.c:3182 [inline] open_last_lookups fs/namei.c:3289 [inline] path_openat+0x1ffa/0x6be0 fs/namei.c:3495 do_filp_open+0x2b8/0x710 fs/namei.c:3525 do_sys_openat2+0x25f/0x830 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_open fs/open.c:1211 [inline] __se_sys_open+0x271/0x2d0 fs/open.c:1207 __x64_sys_open+0x4a/0x70 fs/open.c:1207 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb4930a16f0 Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 19 30 2c 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 fe 9d 01 00 48 89 04 24 RSP: 002b:00007ffee68b9e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb4930a16f0 RDX: 0000000000000180 RSI: 00000000000800c2 RDI: 00005618cbf82e50 RBP: 000000000003a2f8 R08: 000000000000fe80 R09: 0000000000000030 R10: 0000000000000000 R11: 0000000000000246 R12: 00005618cbf82e71 R13: 8421084210842109 R14: 00000000000800c2 R15: 00007fb49312f540 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] __kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609 kmalloc_reserve net/core/skbuff.c:353 [inline] __alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424 __netdev_alloc_skb+0x45d/0x810 net/core/skbuff.c:491 __dev_alloc_skb include/linux/skbuff.h:2871 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:629 [inline] ath9k_hif_usb_rx_cb+0xe58/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 ===================================================== ===================================================== BUG: KMSAN: uninit-value in skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 CPU: 0 PID: 9993 Comm: systemd-udevd Tainted: G B 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 ath9k_htc_rx_msg+0x631/0x1f60 drivers/net/wireless/ath/ath9k/htc_hst.c:455 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:647 [inline] ath9k_hif_usb_rx_cb+0x184e/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu+0x22f/0x280 kernel/softirq.c:422 irq_exit_rcu+0xe/0x10 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0xc6/0xf0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:650 RIP: 0010:kmsan_unpoison_shadow+0x82/0xa0 mm/kmsan/kmsan_hooks.c:398 Code: ff ff e8 d1 da ff ff 8b b0 b0 0f 00 00 ff ce 89 b0 b0 0f 00 00 75 1c e8 6c 05 0c ff 41 f7 c7 00 02 00 00 74 01 fb 48 83 c4 08 <5b> 41 5e 41 5f 5d c3 0f 0b 48 c7 c7 d9 41 7c 90 31 c0 e8 30 1c 26 RSP: 0018:ffff88802e53bbf0 EFLAGS: 00000296 RAX: ffff888014db8a88 RBX: ffff88802e53bc90 RCX: 0000000000000003 RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff88802e53bc90 RBP: ffff88802e53bc08 R08: ffffea000000000f R09: ffff88813fffa000 R10: 00000000d2ef3c25 R11: 0000000000000000 R12: 0000000000000008 R13: 0000000000000fd8 R14: 0000000000000008 R15: 0000000000000246 do_strncpy_from_user lib/strncpy_from_user.c:41 [inline] strncpy_from_user+0x379/0x830 lib/strncpy_from_user.c:139 getname_flags+0x200/0xbe0 fs/namei.c:149 getname+0x55/0x60 fs/namei.c:209 do_sys_openat2+0x133/0x830 fs/open.c:1181 do_sys_open fs/open.c:1203 [inline] __do_sys_open fs/open.c:1211 [inline] __se_sys_open+0x271/0x2d0 fs/open.c:1207 __x64_sys_open+0x4a/0x70 fs/open.c:1207 do_syscall_64+0x9f/0x140 arch/x86/entry/common.c:48 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb4930a16f0 Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 19 30 2c 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 fe 9d 01 00 48 89 04 24 RSP: 002b:00007ffee68b9dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00005618cbf95c20 RCX: 00007fb4930a16f0 RDX: 00000000000001b6 RSI: 0000000000080000 RDI: 00007ffee68b9f70 RBP: 0000000000000008 R08: 0000000000000008 R09: 0000000000000001 R10: 0000000000080000 R11: 0000000000000246 R12: 00005618cab0c68a R13: 0000000000000001 R14: 00007ffee68b9f70 R15: 00007ffee68b9fd0 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] __kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609 kmalloc_reserve net/core/skbuff.c:353 [inline] __alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424 __netdev_alloc_skb+0x45d/0x810 net/core/skbuff.c:491 __dev_alloc_skb include/linux/skbuff.h:2871 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:629 [inline] ath9k_hif_usb_rx_cb+0xe58/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 ===================================================== ===================================================== BUG: KMSAN: uninit-value in skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 CPU: 0 PID: 11 Comm: ksoftirqd/0 Tainted: G B 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 skb_trim+0x1fa/0x280 net/core/skbuff.c:1965 ath9k_htc_rx_msg+0x631/0x1f60 drivers/net/wireless/ath/ath9k/htc_hst.c:455 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:647 [inline] ath9k_hif_usb_rx_cb+0x184e/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 run_ksoftirqd+0x20/0x40 kernel/softirq.c:652 smpboot_thread_fn+0x5f5/0xa90 kernel/smpboot.c:165 kthread+0x521/0x560 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Uninit was created at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:121 [inline] kmsan_internal_poison_shadow+0x5c/0xf0 mm/kmsan/kmsan.c:104 kmsan_slab_alloc+0x8e/0xe0 mm/kmsan/kmsan_hooks.c:76 slab_alloc_node mm/slub.c:2922 [inline] __kmalloc_node_track_caller+0xa4f/0x1470 mm/slub.c:4609 kmalloc_reserve net/core/skbuff.c:353 [inline] __alloc_skb+0x4dd/0xe90 net/core/skbuff.c:424 __netdev_alloc_skb+0x45d/0x810 net/core/skbuff.c:491 __dev_alloc_skb include/linux/skbuff.h:2871 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:629 [inline] ath9k_hif_usb_rx_cb+0xe58/0x1d20 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x6ff/0x930 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x1cb/0x730 drivers/usb/core/hcd.c:1726 dummy_timer+0xda7/0x74f0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x7d/0x450 kernel/time/timer.c:1431 expire_timers+0x328/0x6c0 kernel/time/timer.c:1476 __run_timers+0x624/0x9e0 kernel/time/timer.c:1745 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1758 __do_softirq+0x1b9/0x715 kernel/softirq.c:345 =====================================================