Date
July 12, 2025, 11:09 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.813019] ================================================================== [ 18.813429] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x2f4/0x330 [ 18.813623] Read of size 1 at addr fff00000c5ecf000 by task kunit_try_catch/141 [ 18.813847] [ 18.814000] CPU: 0 UID: 0 PID: 141 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT [ 18.814162] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.814814] Hardware name: linux,dummy-virt (DT) [ 18.815143] Call trace: [ 18.815196] show_stack+0x20/0x38 (C) [ 18.815586] dump_stack_lvl+0x8c/0xd0 [ 18.816139] print_report+0x118/0x608 [ 18.816611] kasan_report+0xdc/0x128 [ 18.817073] __asan_report_load1_noabort+0x20/0x30 [ 18.818159] kmalloc_node_oob_right+0x2f4/0x330 [ 18.818921] kunit_try_run_case+0x170/0x3f0 [ 18.819069] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.819726] kthread+0x328/0x630 [ 18.820001] ret_from_fork+0x10/0x20 [ 18.820349] [ 18.820599] Allocated by task 141: [ 18.820750] kasan_save_stack+0x3c/0x68 [ 18.820876] kasan_save_track+0x20/0x40 [ 18.820970] kasan_save_alloc_info+0x40/0x58 [ 18.821068] __kasan_kmalloc+0xd4/0xd8 [ 18.822471] __kmalloc_cache_node_noprof+0x178/0x3d0 [ 18.822703] kmalloc_node_oob_right+0xbc/0x330 [ 18.822978] kunit_try_run_case+0x170/0x3f0 [ 18.823209] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.823397] kthread+0x328/0x630 [ 18.823483] ret_from_fork+0x10/0x20 [ 18.823566] [ 18.823612] The buggy address belongs to the object at fff00000c5ece000 [ 18.823612] which belongs to the cache kmalloc-4k of size 4096 [ 18.823754] The buggy address is located 0 bytes to the right of [ 18.823754] allocated 4096-byte region [fff00000c5ece000, fff00000c5ecf000) [ 18.823925] [ 18.823975] The buggy address belongs to the physical page: [ 18.824142] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105ec8 [ 18.825962] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 18.826120] flags: 0xbfffe0000000040(head|node=0|zone=2|lastcpupid=0x1ffff) [ 18.826706] page_type: f5(slab) [ 18.826923] raw: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 18.827125] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 18.827291] head: 0bfffe0000000040 fff00000c0002140 dead000000000122 0000000000000000 [ 18.827408] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 18.827533] head: 0bfffe0000000003 ffffc1ffc317b201 00000000ffffffff 00000000ffffffff [ 18.827664] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 18.827772] page dumped because: kasan: bad access detected [ 18.827864] [ 18.827909] Memory state around the buggy address: [ 18.827987] fff00000c5ecef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.828093] fff00000c5ecef80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 18.828200] >fff00000c5ecf000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.828293] ^ [ 18.828364] fff00000c5ecf080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.828477] fff00000c5ecf100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.828578] ==================================================================
[ 12.031486] ================================================================== [ 12.034047] BUG: KASAN: slab-out-of-bounds in kmalloc_node_oob_right+0x369/0x3c0 [ 12.034551] Read of size 1 at addr ffff8881029cd000 by task kunit_try_catch/158 [ 12.035129] [ 12.035236] CPU: 0 UID: 0 PID: 158 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc5 #1 PREEMPT(voluntary) [ 12.035392] Tainted: [B]=BAD_PAGE, [N]=TEST [ 12.035407] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 12.035426] Call Trace: [ 12.035439] <TASK> [ 12.035662] dump_stack_lvl+0x73/0xb0 [ 12.035694] print_report+0xd1/0x650 [ 12.035716] ? __virt_addr_valid+0x1db/0x2d0 [ 12.035740] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.035778] ? kasan_complete_mode_report_info+0x2a/0x200 [ 12.035824] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.035849] kasan_report+0x141/0x180 [ 12.035870] ? kmalloc_node_oob_right+0x369/0x3c0 [ 12.035898] __asan_report_load1_noabort+0x18/0x20 [ 12.035922] kmalloc_node_oob_right+0x369/0x3c0 [ 12.035946] ? __pfx_kmalloc_node_oob_right+0x10/0x10 [ 12.035981] ? __schedule+0x10cc/0x2b60 [ 12.036002] ? __pfx_read_tsc+0x10/0x10 [ 12.036022] ? ktime_get_ts64+0x86/0x230 [ 12.036046] kunit_try_run_case+0x1a5/0x480 [ 12.036070] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.036093] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 12.036116] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 12.036139] ? __kthread_parkme+0x82/0x180 [ 12.036165] ? preempt_count_sub+0x50/0x80 [ 12.036188] ? __pfx_kunit_try_run_case+0x10/0x10 [ 12.036212] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.036236] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 12.036260] kthread+0x337/0x6f0 [ 12.036279] ? trace_preempt_on+0x20/0xc0 [ 12.036302] ? __pfx_kthread+0x10/0x10 [ 12.036326] ? _raw_spin_unlock_irq+0x47/0x80 [ 12.036347] ? calculate_sigpending+0x7b/0xa0 [ 12.036370] ? __pfx_kthread+0x10/0x10 [ 12.036391] ret_from_fork+0x116/0x1d0 [ 12.036409] ? __pfx_kthread+0x10/0x10 [ 12.036429] ret_from_fork_asm+0x1a/0x30 [ 12.036458] </TASK> [ 12.036469] [ 12.046583] Allocated by task 158: [ 12.046797] kasan_save_stack+0x45/0x70 [ 12.047448] kasan_save_track+0x18/0x40 [ 12.047614] kasan_save_alloc_info+0x3b/0x50 [ 12.048119] __kasan_kmalloc+0xb7/0xc0 [ 12.048396] __kmalloc_cache_node_noprof+0x188/0x420 [ 12.048862] kmalloc_node_oob_right+0xab/0x3c0 [ 12.049210] kunit_try_run_case+0x1a5/0x480 [ 12.049515] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 12.049890] kthread+0x337/0x6f0 [ 12.050067] ret_from_fork+0x116/0x1d0 [ 12.050251] ret_from_fork_asm+0x1a/0x30 [ 12.050448] [ 12.050534] The buggy address belongs to the object at ffff8881029cc000 [ 12.050534] which belongs to the cache kmalloc-4k of size 4096 [ 12.051798] The buggy address is located 0 bytes to the right of [ 12.051798] allocated 4096-byte region [ffff8881029cc000, ffff8881029cd000) [ 12.052406] [ 12.052622] The buggy address belongs to the physical page: [ 12.053360] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1029c8 [ 12.054066] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 12.054400] flags: 0x200000000000040(head|node=0|zone=2) [ 12.055054] page_type: f5(slab) [ 12.055227] raw: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.055624] raw: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.056289] head: 0200000000000040 ffff888100042140 dead000000000122 0000000000000000 [ 12.056880] head: 0000000000000000 0000000080040004 00000000f5000000 0000000000000000 [ 12.057327] head: 0200000000000003 ffffea00040a7201 00000000ffffffff 00000000ffffffff [ 12.057803] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 12.058358] page dumped because: kasan: bad access detected [ 12.058626] [ 12.059077] Memory state around the buggy address: [ 12.059300] ffff8881029ccf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.059646] ffff8881029ccf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 12.060269] >ffff8881029cd000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.060828] ^ [ 12.061111] ffff8881029cd080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.061453] ffff8881029cd100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 12.062027] ==================================================================