Date
Nov. 22, 2024, 6:35 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 37.116551] ================================================================== [ 37.118299] BUG: KASAN: slab-out-of-bounds in memcmp+0x198/0x1d8 [ 37.119067] Read of size 1 at addr fff00000c6a4c458 by task kunit_try_catch/246 [ 37.120074] [ 37.120506] CPU: 1 UID: 0 PID: 246 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 37.121923] Tainted: [B]=BAD_PAGE, [N]=TEST [ 37.122635] Hardware name: linux,dummy-virt (DT) [ 37.123298] Call trace: [ 37.123677] show_stack+0x20/0x38 (C) [ 37.124401] dump_stack_lvl+0x8c/0xd0 [ 37.125918] print_report+0x118/0x5e0 [ 37.126464] kasan_report+0xc8/0x118 [ 37.127094] __asan_report_load1_noabort+0x20/0x30 [ 37.127787] memcmp+0x198/0x1d8 [ 37.128285] kasan_memcmp+0x16c/0x300 [ 37.128986] kunit_try_run_case+0x14c/0x3d0 [ 37.129601] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 37.130992] kthread+0x24c/0x2d0 [ 37.131548] ret_from_fork+0x10/0x20 [ 37.132315] [ 37.132766] Allocated by task 246: [ 37.133969] kasan_save_stack+0x3c/0x68 [ 37.134894] kasan_save_track+0x20/0x40 [ 37.135358] kasan_save_alloc_info+0x40/0x58 [ 37.135997] __kasan_kmalloc+0xd4/0xd8 [ 37.137107] __kmalloc_cache_noprof+0x15c/0x3c8 [ 37.137827] kasan_memcmp+0xbc/0x300 [ 37.138412] kunit_try_run_case+0x14c/0x3d0 [ 37.139151] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 37.139914] kthread+0x24c/0x2d0 [ 37.141529] ret_from_fork+0x10/0x20 [ 37.142214] [ 37.142575] The buggy address belongs to the object at fff00000c6a4c440 [ 37.142575] which belongs to the cache kmalloc-32 of size 32 [ 37.144178] The buggy address is located 0 bytes to the right of [ 37.144178] allocated 24-byte region [fff00000c6a4c440, fff00000c6a4c458) [ 37.147202] [ 37.147572] The buggy address belongs to the physical page: [ 37.148359] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106a4c [ 37.149606] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 37.150064] page_type: f5(slab) [ 37.150330] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 37.152037] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 37.154013] page dumped because: kasan: bad access detected [ 37.155819] [ 37.156239] Memory state around the buggy address: [ 37.157713] fff00000c6a4c300: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 37.159570] fff00000c6a4c380: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 37.160250] >fff00000c6a4c400: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 37.161414] ^ [ 37.162612] fff00000c6a4c480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 37.163365] fff00000c6a4c500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 37.164398] ==================================================================
[ 28.048405] ================================================================== [ 28.049534] BUG: KASAN: slab-out-of-bounds in memcmp+0x1b4/0x1d0 [ 28.050634] Read of size 1 at addr ffff888102a18958 by task kunit_try_catch/265 [ 28.051499] [ 28.052043] CPU: 1 UID: 0 PID: 265 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241122 #1 [ 28.053191] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.053743] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 28.054327] Call Trace: [ 28.055532] <TASK> [ 28.055848] dump_stack_lvl+0x73/0xb0 [ 28.056357] print_report+0xd1/0x640 [ 28.057029] ? __virt_addr_valid+0x1db/0x2d0 [ 28.057521] ? kasan_complete_mode_report_info+0x2a/0x200 [ 28.058195] kasan_report+0x102/0x140 [ 28.058592] ? memcmp+0x1b4/0x1d0 [ 28.059558] ? memcmp+0x1b4/0x1d0 [ 28.060008] __asan_report_load1_noabort+0x18/0x20 [ 28.060641] memcmp+0x1b4/0x1d0 [ 28.061203] kasan_memcmp+0x190/0x390 [ 28.061760] ? trace_hardirqs_on+0x37/0xe0 [ 28.062344] ? __pfx_kasan_memcmp+0x10/0x10 [ 28.062813] ? finish_task_switch.isra.0+0x153/0x700 [ 28.063253] ? __switch_to+0x5d9/0xf60 [ 28.063699] ? __pfx_read_tsc+0x10/0x10 [ 28.064379] ? ktime_get_ts64+0x84/0x230 [ 28.064772] kunit_try_run_case+0x1b3/0x490 [ 28.065695] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.066428] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 28.067151] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 28.067628] ? __kthread_parkme+0x82/0x160 [ 28.068433] ? preempt_count_sub+0x50/0x80 [ 28.068741] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.069540] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 28.069965] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.071095] kthread+0x257/0x310 [ 28.071670] ? __pfx_kthread+0x10/0x10 [ 28.072193] ret_from_fork+0x41/0x80 [ 28.072851] ? __pfx_kthread+0x10/0x10 [ 28.073381] ret_from_fork_asm+0x1a/0x30 [ 28.073970] </TASK> [ 28.074471] [ 28.074644] Allocated by task 265: [ 28.074904] kasan_save_stack+0x3d/0x60 [ 28.075303] kasan_save_track+0x18/0x40 [ 28.075970] kasan_save_alloc_info+0x3b/0x50 [ 28.076906] __kasan_kmalloc+0xb7/0xc0 [ 28.077290] __kmalloc_cache_noprof+0x184/0x410 [ 28.077626] kasan_memcmp+0xb8/0x390 [ 28.077917] kunit_try_run_case+0x1b3/0x490 [ 28.078386] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.079101] kthread+0x257/0x310 [ 28.079552] ret_from_fork+0x41/0x80 [ 28.079934] ret_from_fork_asm+0x1a/0x30 [ 28.080211] [ 28.080365] The buggy address belongs to the object at ffff888102a18940 [ 28.080365] which belongs to the cache kmalloc-32 of size 32 [ 28.081621] The buggy address is located 0 bytes to the right of [ 28.081621] allocated 24-byte region [ffff888102a18940, ffff888102a18958) [ 28.082702] [ 28.082958] The buggy address belongs to the physical page: [ 28.083670] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a18 [ 28.084907] flags: 0x200000000000000(node=0|zone=2) [ 28.085298] page_type: f5(slab) [ 28.085543] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 28.086206] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 28.087277] page dumped because: kasan: bad access detected [ 28.087788] [ 28.088029] Memory state around the buggy address: [ 28.088465] ffff888102a18800: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.090122] ffff888102a18880: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.090786] >ffff888102a18900: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.091699] ^ [ 28.092297] ffff888102a18980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.092848] ffff888102a18a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.093480] ==================================================================