Date
June 19, 2025, 12:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 29.879454] ================================================================== [ 29.879778] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x2a4/0x2f0 [ 29.879939] Write of size 1 at addr fff00000c646df00 by task kunit_try_catch/155 [ 29.880048] [ 29.880127] CPU: 1 UID: 0 PID: 155 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT [ 29.880684] Tainted: [B]=BAD_PAGE, [N]=TEST [ 29.880760] Hardware name: linux,dummy-virt (DT) [ 29.880863] Call trace: [ 29.880950] show_stack+0x20/0x38 (C) [ 29.881120] dump_stack_lvl+0x8c/0xd0 [ 29.881268] print_report+0x118/0x608 [ 29.881376] kasan_report+0xdc/0x128 [ 29.881478] __asan_report_store1_noabort+0x20/0x30 [ 29.881599] kmalloc_big_oob_right+0x2a4/0x2f0 [ 29.881722] kunit_try_run_case+0x170/0x3f0 [ 29.881893] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.882077] kthread+0x328/0x630 [ 29.882201] ret_from_fork+0x10/0x20 [ 29.882300] [ 29.882338] Allocated by task 155: [ 29.882423] kasan_save_stack+0x3c/0x68 [ 29.882521] kasan_save_track+0x20/0x40 [ 29.883233] kasan_save_alloc_info+0x40/0x58 [ 29.883338] __kasan_kmalloc+0xd4/0xd8 [ 29.883436] __kmalloc_cache_noprof+0x16c/0x3c0 [ 29.883558] kmalloc_big_oob_right+0xb8/0x2f0 [ 29.883679] kunit_try_run_case+0x170/0x3f0 [ 29.884361] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 29.884498] kthread+0x328/0x630 [ 29.884626] ret_from_fork+0x10/0x20 [ 29.884708] [ 29.884758] The buggy address belongs to the object at fff00000c646c000 [ 29.884758] which belongs to the cache kmalloc-8k of size 8192 [ 29.884973] The buggy address is located 0 bytes to the right of [ 29.884973] allocated 7936-byte region [fff00000c646c000, fff00000c646df00) [ 29.885189] [ 29.885259] The buggy address belongs to the physical page: [ 29.885373] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106468 [ 29.885490] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 29.885587] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 29.885858] page_type: f5(slab) [ 29.885967] raw: 0bfffe0000000040 fff00000c0002280 dead000000000100 dead000000000122 [ 29.886074] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 29.886175] head: 0bfffe0000000040 fff00000c0002280 dead000000000100 dead000000000122 [ 29.886271] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 29.886373] head: 0bfffe0000000003 ffffc1ffc3191a01 00000000ffffffff 00000000ffffffff [ 29.886470] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 29.887025] page dumped because: kasan: bad access detected [ 29.887165] [ 29.887208] Memory state around the buggy address: [ 29.887294] fff00000c646de00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.887397] fff00000c646de80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.887496] >fff00000c646df00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.887582] ^ [ 29.887650] fff00000c646df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.887754] fff00000c646e000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.887856] ==================================================================
[ 26.046697] ================================================================== [ 26.047218] BUG: KASAN: slab-out-of-bounds in kmalloc_big_oob_right+0x316/0x370 [ 26.048208] Write of size 1 at addr ffff8881038e1f00 by task kunit_try_catch/173 [ 26.049145] [ 26.049520] CPU: 0 UID: 0 PID: 173 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc2-next-20250619 #1 PREEMPT(voluntary) [ 26.049660] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.049682] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.049710] Call Trace: [ 26.049730] <TASK> [ 26.049759] dump_stack_lvl+0x73/0xb0 [ 26.049811] print_report+0xd1/0x650 [ 26.049838] ? __virt_addr_valid+0x1db/0x2d0 [ 26.049865] ? kmalloc_big_oob_right+0x316/0x370 [ 26.049986] ? kasan_complete_mode_report_info+0x2a/0x200 [ 26.050017] ? kmalloc_big_oob_right+0x316/0x370 [ 26.050041] kasan_report+0x141/0x180 [ 26.050065] ? kmalloc_big_oob_right+0x316/0x370 [ 26.050093] __asan_report_store1_noabort+0x1b/0x30 [ 26.050144] kmalloc_big_oob_right+0x316/0x370 [ 26.050178] ? __pfx_kmalloc_big_oob_right+0x10/0x10 [ 26.050345] ? __schedule+0x10cc/0x2b60 [ 26.050375] ? __pfx_read_tsc+0x10/0x10 [ 26.050400] ? ktime_get_ts64+0x86/0x230 [ 26.050429] kunit_try_run_case+0x1a5/0x480 [ 26.050458] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.050482] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 26.050508] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.050533] ? __kthread_parkme+0x82/0x180 [ 26.050557] ? preempt_count_sub+0x50/0x80 [ 26.050583] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.050608] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.050634] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.050658] kthread+0x337/0x6f0 [ 26.050680] ? trace_preempt_on+0x20/0xc0 [ 26.050706] ? __pfx_kthread+0x10/0x10 [ 26.050728] ? _raw_spin_unlock_irq+0x47/0x80 [ 26.050751] ? calculate_sigpending+0x7b/0xa0 [ 26.050777] ? __pfx_kthread+0x10/0x10 [ 26.050800] ret_from_fork+0x116/0x1d0 [ 26.050821] ? __pfx_kthread+0x10/0x10 [ 26.050843] ret_from_fork_asm+0x1a/0x30 [ 26.050883] </TASK> [ 26.050898] [ 26.064522] Allocated by task 173: [ 26.064913] kasan_save_stack+0x45/0x70 [ 26.065176] kasan_save_track+0x18/0x40 [ 26.065447] kasan_save_alloc_info+0x3b/0x50 [ 26.065741] __kasan_kmalloc+0xb7/0xc0 [ 26.066370] __kmalloc_cache_noprof+0x189/0x420 [ 26.066714] kmalloc_big_oob_right+0xa9/0x370 [ 26.067411] kunit_try_run_case+0x1a5/0x480 [ 26.067790] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.068369] kthread+0x337/0x6f0 [ 26.068816] ret_from_fork+0x116/0x1d0 [ 26.069254] ret_from_fork_asm+0x1a/0x30 [ 26.069478] [ 26.069675] The buggy address belongs to the object at ffff8881038e0000 [ 26.069675] which belongs to the cache kmalloc-8k of size 8192 [ 26.070250] The buggy address is located 0 bytes to the right of [ 26.070250] allocated 7936-byte region [ffff8881038e0000, ffff8881038e1f00) [ 26.071379] [ 26.071583] The buggy address belongs to the physical page: [ 26.072138] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1038e0 [ 26.072666] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 26.073384] flags: 0x200000000000040(head|node=0|zone=2) [ 26.073753] page_type: f5(slab) [ 26.074125] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 26.074688] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 26.075514] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 26.076164] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 26.077053] head: 0200000000000003 ffffea00040e3801 00000000ffffffff 00000000ffffffff [ 26.077339] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 26.078276] page dumped because: kasan: bad access detected [ 26.078481] [ 26.078795] Memory state around the buggy address: [ 26.079035] ffff8881038e1e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.080014] ffff8881038e1e80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 26.080486] >ffff8881038e1f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.081593] ^ [ 26.081827] ffff8881038e1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.082071] ffff8881038e2000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 26.082682] ==================================================================