{"id":"DEBIAN-CVE-2025-39833","details":"In the Linux kernel, the following vulnerability has been resolved:  mISDN: hfcpci: Fix warning when deleting uninitialized timer  With CONFIG_DEBUG_OBJECTS_TIMERS unloading hfcpci module leads to the following splat:  [  250.215892] ODEBUG: assert_init not available (active state 0) object: ffffffffc01a3dc0 object type: timer_list hint: 0x0 [  250.217520] WARNING: CPU: 0 PID: 233 at lib/debugobjects.c:612 debug_print_object+0x1b6/0x2c0 [  250.218775] Modules linked in: hfcpci(-) mISDN_core [  250.219537] CPU: 0 UID: 0 PID: 233 Comm: rmmod Not tainted 6.17.0-rc2-g6f713187ac98 #2 PREEMPT(voluntary) [  250.220940] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [  250.222377] RIP: 0010:debug_print_object+0x1b6/0x2c0 [  250.223131] Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4f 41 56 48 8b 14 dd a0 4e 01 9f 48 89 ee 48 c7 c7 20 46 01 9f e8 cb 84d [  250.225805] RSP: 0018:ffff888015ea7c08 EFLAGS: 00010286 [  250.226608] RAX: 0000000000000000 RBX: 0000000000000005 RCX: ffffffff9be93a95 [  250.227708] RDX: 1ffff1100d945138 RSI: 0000000000000008 RDI: ffff88806ca289c0 [  250.228993] RBP: ffffffff9f014a00 R08: 0000000000000001 R09: ffffed1002bd4f39 [  250.230043] R10: ffff888015ea79cf R11: 0000000000000001 R12: 0000000000000001 [  250.231185] R13: ffffffff9eea0520 R14: 0000000000000000 R15: ffff888015ea7cc8 [  250.232454] FS:  00007f3208f01540(0000) GS:ffff8880caf5a000(0000) knlGS:0000000000000000 [  250.233851] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [  250.234856] CR2: 00007f32090a7421 CR3: 0000000004d63000 CR4: 00000000000006f0 [  250.236117] Call Trace: [  250.236599]  \u003cTASK\u003e [  250.236967]  ? trace_irq_enable.constprop.0+0xd4/0x130 [  250.237920]  debug_object_assert_init+0x1f6/0x310 [  250.238762]  ? __pfx_debug_object_assert_init+0x10/0x10 [  250.239658]  ? __lock_acquire+0xdea/0x1c70 [  250.240369]  __try_to_del_timer_sync+0x69/0x140 [  250.241172]  ? __pfx___try_to_del_timer_sync+0x10/0x10 [  250.242058]  ? __timer_delete_sync+0xc6/0x120 [  250.242842]  ? lock_acquire+0x30/0x80 [  250.243474]  ? __timer_delete_sync+0xc6/0x120 [  250.244262]  __timer_delete_sync+0x98/0x120 [  250.245015]  HFC_cleanup+0x10/0x20 [hfcpci] [  250.245704]  __do_sys_delete_module+0x348/0x510 [  250.246461]  ? __pfx___do_sys_delete_module+0x10/0x10 [  250.247338]  do_syscall_64+0xc1/0x360 [  250.247924]  entry_SYSCALL_64_after_hwframe+0x77/0x7f  Fix this by initializing hfc_tl timer with DEFINE_TIMER macro. Also, use mod_timer instead of manual timeout update.","modified":"2026-09-08T17:00:05.775633950Z","published":"2025-09-16T14:15:51.580Z","upstream":["CVE-2025-39833"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-39833"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.187-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.140-1","6.1.147-1","6.1.148-1","6.1.153-1","6.1.158-1","6.1.159-1","6.1.162-1","6.1.164-1","6.1.170-1","6.1.170-2","6.1.170-3","6.1.172-1","6.1.174-1","6.1.176-1","6.1.177-1","6.1.180-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not 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