Date
June 23, 2025, 1:39 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 23.923731] ================================================================== [ 23.923871] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x2ec/0x320 [ 23.924006] Read of size 1 at addr fff00000c5e9dd1f by task kunit_try_catch/140 [ 23.924121] [ 23.924203] CPU: 0 UID: 0 PID: 140 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT [ 23.924413] Tainted: [B]=BAD_PAGE, [N]=TEST [ 23.924479] Hardware name: linux,dummy-virt (DT) [ 23.924553] Call trace: [ 23.924609] show_stack+0x20/0x38 (C) [ 23.924830] dump_stack_lvl+0x8c/0xd0 [ 23.924964] print_report+0x118/0x608 [ 23.925110] kasan_report+0xdc/0x128 [ 23.925240] __asan_report_load1_noabort+0x20/0x30 [ 23.926581] kmalloc_oob_left+0x2ec/0x320 [ 23.926743] kunit_try_run_case+0x170/0x3f0 [ 23.926811] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 23.926876] kthread+0x328/0x630 [ 23.927029] ret_from_fork+0x10/0x20 [ 23.927153] [ 23.927198] Allocated by task 9: [ 23.927269] kasan_save_stack+0x3c/0x68 [ 23.927366] kasan_save_track+0x20/0x40 [ 23.927545] kasan_save_alloc_info+0x40/0x58 [ 23.927694] __kasan_kmalloc+0xd4/0xd8 [ 23.927790] __kmalloc_node_track_caller_noprof+0x194/0x4b8 [ 23.927935] kvasprintf+0xe0/0x180 [ 23.928124] __kthread_create_on_node+0x16c/0x350 [ 23.928234] kthread_create_on_node+0xe4/0x130 [ 23.928435] create_worker+0x380/0x6b8 [ 23.928669] worker_thread+0x808/0xf38 [ 23.928914] kthread+0x328/0x630 [ 23.929066] ret_from_fork+0x10/0x20 [ 23.929233] [ 23.929318] The buggy address belongs to the object at fff00000c5e9dd00 [ 23.929318] which belongs to the cache kmalloc-16 of size 16 [ 23.929550] The buggy address is located 19 bytes to the right of [ 23.929550] allocated 12-byte region [fff00000c5e9dd00, fff00000c5e9dd0c) [ 23.929714] [ 23.929854] The buggy address belongs to the physical page: [ 23.930007] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105e9d [ 23.930197] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 23.930706] page_type: f5(slab) [ 23.930822] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 23.930955] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 23.932269] page dumped because: kasan: bad access detected [ 23.932352] [ 23.932449] Memory state around the buggy address: [ 23.932536] fff00000c5e9dc00: 00 05 fc fc fa fb fc fc 00 02 fc fc fa fb fc fc [ 23.932647] fff00000c5e9dc80: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 23.932753] >fff00000c5e9dd00: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc [ 23.932844] ^ [ 23.932950] fff00000c5e9dd80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.933104] fff00000c5e9de00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 23.933374] ==================================================================
[ 15.925332] ================================================================== [ 15.926367] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_left+0x361/0x3c0 [ 15.926963] Read of size 1 at addr ffff88810217521f by task kunit_try_catch/159 [ 15.927942] [ 15.928445] CPU: 1 UID: 0 PID: 159 Comm: kunit_try_catch Tainted: G B N 6.15.4-rc1 #1 PREEMPT(voluntary) [ 15.928568] Tainted: [B]=BAD_PAGE, [N]=TEST [ 15.928743] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.928847] Call Trace: [ 15.928889] <TASK> [ 15.928951] dump_stack_lvl+0x73/0xb0 [ 15.929031] print_report+0xd1/0x650 [ 15.929091] ? __virt_addr_valid+0x1db/0x2d0 [ 15.929127] ? kmalloc_oob_left+0x361/0x3c0 [ 15.929158] ? kasan_complete_mode_report_info+0x2a/0x200 [ 15.929191] ? kmalloc_oob_left+0x361/0x3c0 [ 15.929235] kasan_report+0x141/0x180 [ 15.929288] ? kmalloc_oob_left+0x361/0x3c0 [ 15.929328] __asan_report_load1_noabort+0x18/0x20 [ 15.929357] kmalloc_oob_left+0x361/0x3c0 [ 15.929389] ? __pfx_kmalloc_oob_left+0x10/0x10 [ 15.929420] ? __schedule+0x10cc/0x2b60 [ 15.929453] ? __pfx_read_tsc+0x10/0x10 [ 15.929480] ? ktime_get_ts64+0x86/0x230 [ 15.929516] kunit_try_run_case+0x1a5/0x480 [ 15.929552] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.929585] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 15.929673] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 15.929766] ? __kthread_parkme+0x82/0x180 [ 15.929845] ? preempt_count_sub+0x50/0x80 [ 15.929920] ? __pfx_kunit_try_run_case+0x10/0x10 [ 15.929958] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 15.929992] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 15.930025] kthread+0x337/0x6f0 [ 15.930048] ? trace_preempt_on+0x20/0xc0 [ 15.930082] ? __pfx_kthread+0x10/0x10 [ 15.930106] ? _raw_spin_unlock_irq+0x47/0x80 [ 15.930136] ? calculate_sigpending+0x7b/0xa0 [ 15.930166] ? __pfx_kthread+0x10/0x10 [ 15.930189] ret_from_fork+0x41/0x80 [ 15.930230] ? __pfx_kthread+0x10/0x10 [ 15.930276] ret_from_fork_asm+0x1a/0x30 [ 15.930320] </TASK> [ 15.930334] [ 15.949002] Allocated by task 24: [ 15.949554] kasan_save_stack+0x45/0x70 [ 15.950437] kasan_save_track+0x18/0x40 [ 15.951139] kasan_save_alloc_info+0x3b/0x50 [ 15.951567] __kasan_kmalloc+0xb7/0xc0 [ 15.951977] __kmalloc_node_track_caller_noprof+0x1cb/0x500 [ 15.952642] kvasprintf+0xc5/0x150 [ 15.953427] __kthread_create_on_node+0x18b/0x3a0 [ 15.954571] kthread_create_on_node+0xab/0xe0 [ 15.955282] create_worker+0x3e5/0x7b0 [ 15.955665] worker_thread+0x992/0x1220 [ 15.956176] kthread+0x337/0x6f0 [ 15.956573] ret_from_fork+0x41/0x80 [ 15.957357] ret_from_fork_asm+0x1a/0x30 [ 15.957742] [ 15.957982] The buggy address belongs to the object at ffff888102175200 [ 15.957982] which belongs to the cache kmalloc-16 of size 16 [ 15.958896] The buggy address is located 19 bytes to the right of [ 15.958896] allocated 12-byte region [ffff888102175200, ffff88810217520c) [ 15.959857] [ 15.960201] The buggy address belongs to the physical page: [ 15.960737] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102175 [ 15.961494] flags: 0x200000000000000(node=0|zone=2) [ 15.962288] page_type: f5(slab) [ 15.962819] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 15.963649] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 15.964748] page dumped because: kasan: bad access detected [ 15.965418] [ 15.966081] Memory state around the buggy address: [ 15.966892] ffff888102175100: 00 06 fc fc 00 04 fc fc 00 00 fc fc 00 04 fc fc [ 15.967562] ffff888102175180: 00 04 fc fc 00 00 fc fc fa fb fc fc fa fb fc fc [ 15.968650] >ffff888102175200: 00 04 fc fc 00 07 fc fc fc fc fc fc fc fc fc fc [ 15.969733] ^ [ 15.970092] ffff888102175280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.970650] ffff888102175300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 15.972182] ==================================================================