Date
July 1, 2025, 11:08 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 18.368463] ================================================================== [ 18.368757] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x3a0/0x3f8 [ 18.368856] Write of size 16 at addr fff00000c5d4d9c0 by task kunit_try_catch/167 [ 18.368965] [ 18.369012] CPU: 1 UID: 0 PID: 167 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT [ 18.369103] Tainted: [B]=BAD_PAGE, [N]=TEST [ 18.369147] Hardware name: linux,dummy-virt (DT) [ 18.369216] Call trace: [ 18.369351] show_stack+0x20/0x38 (C) [ 18.369412] dump_stack_lvl+0x8c/0xd0 [ 18.369519] print_report+0x118/0x608 [ 18.369589] kasan_report+0xdc/0x128 [ 18.369659] __asan_report_store16_noabort+0x20/0x30 [ 18.369712] kmalloc_oob_16+0x3a0/0x3f8 [ 18.369761] kunit_try_run_case+0x170/0x3f0 [ 18.369844] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.369951] kthread+0x328/0x630 [ 18.369998] ret_from_fork+0x10/0x20 [ 18.370058] [ 18.370080] Allocated by task 167: [ 18.370111] kasan_save_stack+0x3c/0x68 [ 18.370282] kasan_save_track+0x20/0x40 [ 18.370422] kasan_save_alloc_info+0x40/0x58 [ 18.370475] __kasan_kmalloc+0xd4/0xd8 [ 18.370542] __kmalloc_cache_noprof+0x16c/0x3c0 [ 18.370628] kmalloc_oob_16+0xb4/0x3f8 [ 18.370666] kunit_try_run_case+0x170/0x3f0 [ 18.370706] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 18.370752] kthread+0x328/0x630 [ 18.370820] ret_from_fork+0x10/0x20 [ 18.370859] [ 18.370881] The buggy address belongs to the object at fff00000c5d4d9c0 [ 18.370881] which belongs to the cache kmalloc-16 of size 16 [ 18.371074] The buggy address is located 0 bytes inside of [ 18.371074] allocated 13-byte region [fff00000c5d4d9c0, fff00000c5d4d9cd) [ 18.371384] [ 18.371471] The buggy address belongs to the physical page: [ 18.371605] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105d4d [ 18.371680] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 18.371738] page_type: f5(slab) [ 18.371912] raw: 0bfffe0000000000 fff00000c0001640 dead000000000122 0000000000000000 [ 18.371974] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 18.372019] page dumped because: kasan: bad access detected [ 18.372052] [ 18.372070] Memory state around the buggy address: [ 18.372255] fff00000c5d4d880: 00 05 fc fc fa fb fc fc 00 02 fc fc fa fb fc fc [ 18.372337] fff00000c5d4d900: fa fb fc fc fa fb fc fc fa fb fc fc fa fb fc fc [ 18.372425] >fff00000c5d4d980: 00 04 fc fc fa fb fc fc 00 05 fc fc 00 00 fc fc [ 18.372466] ^ [ 18.372678] fff00000c5d4da00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.372860] fff00000c5d4da80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 18.372991] ==================================================================
[ 11.528771] ================================================================== [ 11.529294] BUG: KASAN: slab-out-of-bounds in kmalloc_oob_16+0x452/0x4a0 [ 11.529631] Write of size 16 at addr ffff88810228a800 by task kunit_try_catch/183 [ 11.529949] [ 11.530295] CPU: 1 UID: 0 PID: 183 Comm: kunit_try_catch Tainted: G B N 6.16.0-rc4 #1 PREEMPT(voluntary) [ 11.530346] Tainted: [B]=BAD_PAGE, [N]=TEST [ 11.530358] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 11.530393] Call Trace: [ 11.530407] <TASK> [ 11.530424] dump_stack_lvl+0x73/0xb0 [ 11.530454] print_report+0xd1/0x650 [ 11.530476] ? __virt_addr_valid+0x1db/0x2d0 [ 11.530499] ? kmalloc_oob_16+0x452/0x4a0 [ 11.530518] ? kasan_complete_mode_report_info+0x2a/0x200 [ 11.530538] ? kmalloc_oob_16+0x452/0x4a0 [ 11.530557] kasan_report+0x141/0x180 [ 11.530577] ? kmalloc_oob_16+0x452/0x4a0 [ 11.530601] __asan_report_store16_noabort+0x1b/0x30 [ 11.530621] kmalloc_oob_16+0x452/0x4a0 [ 11.530640] ? __pfx_kmalloc_oob_16+0x10/0x10 [ 11.530661] ? __schedule+0x10cc/0x2b60 [ 11.530682] ? __pfx_read_tsc+0x10/0x10 [ 11.530703] ? ktime_get_ts64+0x86/0x230 [ 11.530729] kunit_try_run_case+0x1a5/0x480 [ 11.530753] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.530774] ? _raw_spin_lock_irqsave+0xa1/0x100 [ 11.530797] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 11.530818] ? __kthread_parkme+0x82/0x180 [ 11.530838] ? preempt_count_sub+0x50/0x80 [ 11.530860] ? __pfx_kunit_try_run_case+0x10/0x10 [ 11.530883] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.530904] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 11.530985] kthread+0x337/0x6f0 [ 11.531006] ? trace_preempt_on+0x20/0xc0 [ 11.531030] ? __pfx_kthread+0x10/0x10 [ 11.531049] ? _raw_spin_unlock_irq+0x47/0x80 [ 11.531070] ? calculate_sigpending+0x7b/0xa0 [ 11.531092] ? __pfx_kthread+0x10/0x10 [ 11.531112] ret_from_fork+0x116/0x1d0 [ 11.531129] ? __pfx_kthread+0x10/0x10 [ 11.531148] ret_from_fork_asm+0x1a/0x30 [ 11.531178] </TASK> [ 11.531188] [ 11.539203] Allocated by task 183: [ 11.539490] kasan_save_stack+0x45/0x70 [ 11.539701] kasan_save_track+0x18/0x40 [ 11.539879] kasan_save_alloc_info+0x3b/0x50 [ 11.540383] __kasan_kmalloc+0xb7/0xc0 [ 11.540553] __kmalloc_cache_noprof+0x189/0x420 [ 11.540772] kmalloc_oob_16+0xa8/0x4a0 [ 11.540904] kunit_try_run_case+0x1a5/0x480 [ 11.541129] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 11.541361] kthread+0x337/0x6f0 [ 11.541492] ret_from_fork+0x116/0x1d0 [ 11.541622] ret_from_fork_asm+0x1a/0x30 [ 11.541815] [ 11.541910] The buggy address belongs to the object at ffff88810228a800 [ 11.541910] which belongs to the cache kmalloc-16 of size 16 [ 11.542739] The buggy address is located 0 bytes inside of [ 11.542739] allocated 13-byte region [ffff88810228a800, ffff88810228a80d) [ 11.543113] [ 11.543186] The buggy address belongs to the physical page: [ 11.543453] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10228a [ 11.544132] flags: 0x200000000000000(node=0|zone=2) [ 11.544407] page_type: f5(slab) [ 11.544575] raw: 0200000000000000 ffff888100041640 dead000000000122 0000000000000000 [ 11.544846] raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 [ 11.545069] page dumped because: kasan: bad access detected [ 11.545304] [ 11.545425] Memory state around the buggy address: [ 11.545741] ffff88810228a700: fa fb fc fc 00 02 fc fc 00 05 fc fc 00 02 fc fc [ 11.546022] ffff88810228a780: 00 02 fc fc 00 02 fc fc 00 02 fc fc fa fb fc fc [ 11.546240] >ffff88810228a800: 00 05 fc fc 00 00 fc fc fc fc fc fc fc fc fc fc [ 11.546506] ^ [ 11.546803] ffff88810228a880: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.547114] ffff88810228a900: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 11.547448] ==================================================================