Date
Nov. 28, 2024, 2:36 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.658537] ================================================================== [ 33.659315] BUG: KASAN: slab-use-after-free in kasan_strings+0x858/0x8f8 [ 33.660088] Read of size 1 at addr fff00000c4081c10 by task kunit_try_catch/247 [ 33.660857] [ 33.661398] CPU: 1 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241128 #1 [ 33.662425] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.662923] Hardware name: linux,dummy-virt (DT) [ 33.663575] Call trace: [ 33.663930] show_stack+0x20/0x38 (C) [ 33.664601] dump_stack_lvl+0x8c/0xd0 [ 33.665504] print_report+0x118/0x5e0 [ 33.666105] kasan_report+0xc8/0x118 [ 33.666666] __asan_report_load1_noabort+0x20/0x30 [ 33.667413] kasan_strings+0x858/0x8f8 [ 33.668043] kunit_try_run_case+0x14c/0x3d0 [ 33.668718] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.669710] kthread+0x24c/0x2d0 [ 33.670299] ret_from_fork+0x10/0x20 [ 33.670908] [ 33.671252] Allocated by task 247: [ 33.671810] kasan_save_stack+0x3c/0x68 [ 33.672416] kasan_save_track+0x20/0x40 [ 33.673278] kasan_save_alloc_info+0x40/0x58 [ 33.673854] __kasan_kmalloc+0xd4/0xd8 [ 33.674444] __kmalloc_cache_noprof+0x15c/0x3c0 [ 33.675068] kasan_strings+0xb4/0x8f8 [ 33.675673] kunit_try_run_case+0x14c/0x3d0 [ 33.676265] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.677831] kthread+0x24c/0x2d0 [ 33.678204] ret_from_fork+0x10/0x20 [ 33.678926] [ 33.679296] Freed by task 247: [ 33.679723] kasan_save_stack+0x3c/0x68 [ 33.680363] kasan_save_track+0x20/0x40 [ 33.680964] kasan_save_free_info+0x4c/0x78 [ 33.681538] __kasan_slab_free+0x6c/0x98 [ 33.682098] kfree+0x114/0x3c8 [ 33.682840] kasan_strings+0x128/0x8f8 [ 33.683459] kunit_try_run_case+0x14c/0x3d0 [ 33.684133] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.684802] kthread+0x24c/0x2d0 [ 33.685530] ret_from_fork+0x10/0x20 [ 33.686099] [ 33.686496] The buggy address belongs to the object at fff00000c4081c00 [ 33.686496] which belongs to the cache kmalloc-32 of size 32 [ 33.687724] The buggy address is located 16 bytes inside of [ 33.687724] freed 32-byte region [fff00000c4081c00, fff00000c4081c20) [ 33.689234] [ 33.689589] The buggy address belongs to the physical page: [ 33.690216] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x104081 [ 33.691175] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.691954] page_type: f5(slab) [ 33.692441] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 33.693404] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 33.694417] page dumped because: kasan: bad access detected [ 33.695065] [ 33.695448] Memory state around the buggy address: [ 33.696046] fff00000c4081b00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.697159] fff00000c4081b80: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 33.697967] >fff00000c4081c00: fa fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc [ 33.699392] ^ [ 33.699949] fff00000c4081c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.700693] fff00000c4081d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 33.701497] ==================================================================
[ 24.594058] ================================================================== [ 24.595385] BUG: KASAN: slab-use-after-free in kasan_strings+0xa0f/0xb60 [ 24.596132] Read of size 1 at addr ffff888102a34190 by task kunit_try_catch/267 [ 24.597214] [ 24.597408] CPU: 0 UID: 0 PID: 267 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241128 #1 [ 24.598329] Tainted: [B]=BAD_PAGE, [N]=TEST [ 24.598618] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 24.599466] Call Trace: [ 24.599738] <TASK> [ 24.599994] dump_stack_lvl+0x73/0xb0 [ 24.600525] print_report+0xd1/0x640 [ 24.600988] ? __virt_addr_valid+0x1db/0x2d0 [ 24.601545] ? kasan_complete_mode_report_info+0x64/0x200 [ 24.602086] kasan_report+0x102/0x140 [ 24.602404] ? kasan_strings+0xa0f/0xb60 [ 24.602745] ? kasan_strings+0xa0f/0xb60 [ 24.603274] __asan_report_load1_noabort+0x18/0x20 [ 24.603697] kasan_strings+0xa0f/0xb60 [ 24.604053] ? __pfx_kasan_strings+0x10/0x10 [ 24.604619] ? __schedule+0xc3e/0x2790 [ 24.605197] ? __pfx_read_tsc+0x10/0x10 [ 24.605498] ? ktime_get_ts64+0x84/0x230 [ 24.605996] kunit_try_run_case+0x1b3/0x490 [ 24.606473] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.606956] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 24.607366] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 24.607916] ? __kthread_parkme+0x82/0x160 [ 24.608496] ? preempt_count_sub+0x50/0x80 [ 24.608800] ? __pfx_kunit_try_run_case+0x10/0x10 [ 24.609242] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 24.609858] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.610268] kthread+0x257/0x310 [ 24.610723] ? __pfx_kthread+0x10/0x10 [ 24.611250] ret_from_fork+0x41/0x80 [ 24.611737] ? __pfx_kthread+0x10/0x10 [ 24.612258] ret_from_fork_asm+0x1a/0x30 [ 24.612652] </TASK> [ 24.612882] [ 24.613176] Allocated by task 267: [ 24.613623] kasan_save_stack+0x3d/0x60 [ 24.614012] kasan_save_track+0x18/0x40 [ 24.614432] kasan_save_alloc_info+0x3b/0x50 [ 24.614733] __kasan_kmalloc+0xb7/0xc0 [ 24.615018] __kmalloc_cache_noprof+0x184/0x410 [ 24.615649] kasan_strings+0xb3/0xb60 [ 24.616144] kunit_try_run_case+0x1b3/0x490 [ 24.617762] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.618283] kthread+0x257/0x310 [ 24.618580] ret_from_fork+0x41/0x80 [ 24.618956] ret_from_fork_asm+0x1a/0x30 [ 24.619542] [ 24.619692] Freed by task 267: [ 24.620112] kasan_save_stack+0x3d/0x60 [ 24.620566] kasan_save_track+0x18/0x40 [ 24.620879] kasan_save_free_info+0x3f/0x60 [ 24.621615] __kasan_slab_free+0x56/0x70 [ 24.621955] kfree+0x123/0x3f0 [ 24.622404] kasan_strings+0x13a/0xb60 [ 24.622854] kunit_try_run_case+0x1b3/0x490 [ 24.623282] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 24.623871] kthread+0x257/0x310 [ 24.624237] ret_from_fork+0x41/0x80 [ 24.624623] ret_from_fork_asm+0x1a/0x30 [ 24.624941] [ 24.625147] The buggy address belongs to the object at ffff888102a34180 [ 24.625147] which belongs to the cache kmalloc-32 of size 32 [ 24.626451] The buggy address is located 16 bytes inside of [ 24.626451] freed 32-byte region [ffff888102a34180, ffff888102a341a0) [ 24.627768] [ 24.627922] The buggy address belongs to the physical page: [ 24.628542] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a34 [ 24.629946] flags: 0x200000000000000(node=0|zone=2) [ 24.630493] page_type: f5(slab) [ 24.630742] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 24.631615] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 24.632249] page dumped because: kasan: bad access detected [ 24.632745] [ 24.632984] Memory state around the buggy address: [ 24.633476] ffff888102a34080: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 24.634045] ffff888102a34100: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 24.634749] >ffff888102a34180: fa fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc [ 24.635252] ^ [ 24.635719] ffff888102a34200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.636493] ffff888102a34280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 24.636919] ==================================================================