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memory leak in hwsim_add_one (2)

Status: upstream: reported syz repro on 2023/09/22 01:55
Subsystems: wpan input usb
[Documentation on labels]
Reported-by: syzbot+d2aa0f55c4ae66a9b75d@syzkaller.appspotmail.com
First crash: 222d, last: 222d
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wpan?] [input?] [usb?] memory leak in hwsim_add_one (2) 0 (1) 2023/09/22 01:55
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream memory leak in hwsim_add_one wpan C 1 1056d 1054d 20/26 fixed on 2021/11/10 00:50
▶ ▼ Last patch testing requests (3)
Created Duration User Patch Repo Result
2024/02/20 01:22 11m retest repro upstream report log
2023/12/11 12:47 19m retest repro upstream report log
2023/10/02 10:21 14m retest repro upstream report log

Sample crash report:
BUG: memory leak
unreferenced object 0xffff8881042a8940 (size 64):
  comm "swapper/0", pid 1, jiffies 4294937901 (age 1085.750s)
  hex dump (first 32 bytes):
    00 0d 00 00 00 00 00 00 ff ff ff ff 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff81573dc5>] kmalloc_trace+0x25/0x90 mm/slab_common.c:1114
    [<ffffffff831b5a6a>] kmalloc include/linux/slab.h:599 [inline]
    [<ffffffff831b5a6a>] kzalloc include/linux/slab.h:720 [inline]
    [<ffffffff831b5a6a>] hwsim_add_one+0x14a/0x650 drivers/net/ieee802154/mac802154_hwsim.c:949
    [<ffffffff831b5f93>] hwsim_probe+0x23/0xe0 drivers/net/ieee802154/mac802154_hwsim.c:1022
    [<ffffffff82c14f93>] platform_probe+0x83/0x110 drivers/base/platform.c:1404
    [<ffffffff82c10fc6>] call_driver_probe drivers/base/dd.c:579 [inline]
    [<ffffffff82c10fc6>] really_probe+0x126/0x440 drivers/base/dd.c:658
    [<ffffffff82c113a3>] __driver_probe_device+0xc3/0x190 drivers/base/dd.c:800
    [<ffffffff82c1149a>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:830
    [<ffffffff82c117f7>] __driver_attach drivers/base/dd.c:1216 [inline]
    [<ffffffff82c117f7>] __driver_attach+0x107/0x1f0 drivers/base/dd.c:1156
    [<ffffffff82c0e2f3>] bus_for_each_dev+0xb3/0x110 drivers/base/bus.c:368
    [<ffffffff82c0fdf6>] bus_add_driver+0x126/0x2a0 drivers/base/bus.c:673
    [<ffffffff82c12ee5>] driver_register+0x85/0x180 drivers/base/driver.c:246
    [<ffffffff8756e3a6>] hwsim_init_module+0xc6/0x110 drivers/net/ieee802154/mac802154_hwsim.c:1073
    [<ffffffff81001cb6>] do_one_initcall+0x76/0x430 init/main.c:1232
    [<ffffffff874d76ea>] do_initcall_level init/main.c:1294 [inline]
    [<ffffffff874d76ea>] do_initcalls init/main.c:1310 [inline]
    [<ffffffff874d76ea>] do_basic_setup init/main.c:1329 [inline]
    [<ffffffff874d76ea>] kernel_init_freeable+0x25a/0x460 init/main.c:1547
    [<ffffffff84b3628b>] kernel_init+0x1b/0x290 init/main.c:1437
    [<ffffffff81149e35>] ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147

BUG: memory leak
unreferenced object 0xffff8881042a8780 (size 64):
  comm "swapper/0", pid 1, jiffies 4294937902 (age 1085.740s)
  hex dump (first 32 bytes):
    00 0d 00 00 00 00 00 00 ff ff ff ff 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff81573dc5>] kmalloc_trace+0x25/0x90 mm/slab_common.c:1114
    [<ffffffff831b5a6a>] kmalloc include/linux/slab.h:599 [inline]
    [<ffffffff831b5a6a>] kzalloc include/linux/slab.h:720 [inline]
    [<ffffffff831b5a6a>] hwsim_add_one+0x14a/0x650 drivers/net/ieee802154/mac802154_hwsim.c:949
    [<ffffffff831b5fb6>] hwsim_probe+0x46/0xe0 drivers/net/ieee802154/mac802154_hwsim.c:1022
    [<ffffffff82c14f93>] platform_probe+0x83/0x110 drivers/base/platform.c:1404
    [<ffffffff82c10fc6>] call_driver_probe drivers/base/dd.c:579 [inline]
    [<ffffffff82c10fc6>] really_probe+0x126/0x440 drivers/base/dd.c:658
    [<ffffffff82c113a3>] __driver_probe_device+0xc3/0x190 drivers/base/dd.c:800
    [<ffffffff82c1149a>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:830
    [<ffffffff82c117f7>] __driver_attach drivers/base/dd.c:1216 [inline]
    [<ffffffff82c117f7>] __driver_attach+0x107/0x1f0 drivers/base/dd.c:1156
    [<ffffffff82c0e2f3>] bus_for_each_dev+0xb3/0x110 drivers/base/bus.c:368
    [<ffffffff82c0fdf6>] bus_add_driver+0x126/0x2a0 drivers/base/bus.c:673
    [<ffffffff82c12ee5>] driver_register+0x85/0x180 drivers/base/driver.c:246
    [<ffffffff8756e3a6>] hwsim_init_module+0xc6/0x110 drivers/net/ieee802154/mac802154_hwsim.c:1073
    [<ffffffff81001cb6>] do_one_initcall+0x76/0x430 init/main.c:1232
    [<ffffffff874d76ea>] do_initcall_level init/main.c:1294 [inline]
    [<ffffffff874d76ea>] do_initcalls init/main.c:1310 [inline]
    [<ffffffff874d76ea>] do_basic_setup init/main.c:1329 [inline]
    [<ffffffff874d76ea>] kernel_init_freeable+0x25a/0x460 init/main.c:1547
    [<ffffffff84b3628b>] kernel_init+0x1b/0x290 init/main.c:1437
    [<ffffffff81149e35>] ret_from_fork+0x45/0x50 arch/x86/kernel/process.c:147

BUG: memory leak
unreferenced object 0xffff8881007cc000 (size 768):
  comm "udevd", pid 4480, jiffies 4295045154 (age 13.270s)
  hex dump (first 32 bytes):
    01 00 00 00 03 00 00 00 08 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff83e8ff95>] alloc_inode_sb include/linux/fs.h:2909 [inline]
    [<ffffffff83e8ff95>] sock_alloc_inode+0x25/0x90 net/socket.c:308
    [<ffffffff816c39d3>] alloc_inode+0x23/0x100 fs/inode.c:259
    [<ffffffff816c4bf6>] new_inode_pseudo+0x16/0x50 fs/inode.c:1004
    [<ffffffff83e8f2ab>] sock_alloc+0x1b/0x90 net/socket.c:634
    [<ffffffff83e8f8cd>] __sock_create+0xbd/0x2e0 net/socket.c:1516
    [<ffffffff83e92d58>] sock_create net/socket.c:1603 [inline]
    [<ffffffff83e92d58>] __sys_socket_create net/socket.c:1640 [inline]
    [<ffffffff83e92d58>] __sys_socket+0xb8/0x1a0 net/socket.c:1691
    [<ffffffff83e92e5b>] __do_sys_socket net/socket.c:1705 [inline]
    [<ffffffff83e92e5b>] __se_sys_socket net/socket.c:1703 [inline]
    [<ffffffff83e92e5b>] __x64_sys_socket+0x1b/0x20 net/socket.c:1703
    [<ffffffff84b30fc8>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff84b30fc8>] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810c7019a0 (size 32):
  comm "udevd", pid 4480, jiffies 4295045154 (age 13.270s)
  hex dump (first 32 bytes):
    b8 c1 7c 00 81 88 ff ff 70 3d 34 82 ff ff ff ff  ..|.....p=4.....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff823457a2>] kmem_cache_zalloc include/linux/slab.h:710 [inline]
    [<ffffffff823457a2>] lsm_inode_alloc security/security.c:633 [inline]
    [<ffffffff823457a2>] security_inode_alloc+0x32/0xd0 security/security.c:1494
    [<ffffffff816c01ad>] inode_init_always+0x1ed/0x230 fs/inode.c:230
    [<ffffffff816c39f0>] alloc_inode+0x40/0x100 fs/inode.c:266
    [<ffffffff816c4bf6>] new_inode_pseudo+0x16/0x50 fs/inode.c:1004
    [<ffffffff83e8f2ab>] sock_alloc+0x1b/0x90 net/socket.c:634
    [<ffffffff83e8f8cd>] __sock_create+0xbd/0x2e0 net/socket.c:1516
    [<ffffffff83e92d58>] sock_create net/socket.c:1603 [inline]
    [<ffffffff83e92d58>] __sys_socket_create net/socket.c:1640 [inline]
    [<ffffffff83e92d58>] __sys_socket+0xb8/0x1a0 net/socket.c:1691
    [<ffffffff83e92e5b>] __do_sys_socket net/socket.c:1705 [inline]
    [<ffffffff83e92e5b>] __se_sys_socket net/socket.c:1703 [inline]
    [<ffffffff83e92e5b>] __x64_sys_socket+0x1b/0x20 net/socket.c:1703
    [<ffffffff84b30fc8>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff84b30fc8>] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84c0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

[

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/18 01:51 upstream e789286468a9 0b6a67ac .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-gce-leak memory leak in hwsim_add_one
* Struck through repros no longer work on HEAD.