Date
Dec. 3, 2024, 11:38 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 33.644802] ================================================================== [ 33.645582] BUG: KASAN: slab-use-after-free in strlen+0xa8/0xb0 [ 33.646386] Read of size 1 at addr fff00000c5921b90 by task kunit_try_catch/248 [ 33.647147] [ 33.647751] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 33.649023] Tainted: [B]=BAD_PAGE, [N]=TEST [ 33.649642] Hardware name: linux,dummy-virt (DT) [ 33.650317] Call trace: [ 33.650959] show_stack+0x20/0x38 (C) [ 33.651791] dump_stack_lvl+0x8c/0xd0 [ 33.652639] print_report+0x118/0x5e0 [ 33.653404] kasan_report+0xc8/0x118 [ 33.654185] __asan_report_load1_noabort+0x20/0x30 [ 33.654961] strlen+0xa8/0xb0 [ 33.655612] kasan_strings+0x304/0x8d8 [ 33.656319] kunit_try_run_case+0x14c/0x3d0 [ 33.657076] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.658021] kthread+0x24c/0x2d0 [ 33.658725] ret_from_fork+0x10/0x20 [ 33.659473] [ 33.659900] Allocated by task 248: [ 33.660555] kasan_save_stack+0x3c/0x68 [ 33.661247] kasan_save_track+0x20/0x40 [ 33.661962] kasan_save_alloc_info+0x40/0x58 [ 33.662800] __kasan_kmalloc+0xd4/0xd8 [ 33.663590] __kmalloc_cache_noprof+0x15c/0x3c0 [ 33.664391] kasan_strings+0xb0/0x8d8 [ 33.665065] kunit_try_run_case+0x14c/0x3d0 [ 33.665841] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.666687] kthread+0x24c/0x2d0 [ 33.667344] ret_from_fork+0x10/0x20 [ 33.668054] [ 33.668525] Freed by task 248: [ 33.669162] kasan_save_stack+0x3c/0x68 [ 33.669925] kasan_save_track+0x20/0x40 [ 33.670655] kasan_save_free_info+0x4c/0x78 [ 33.671230] __kasan_slab_free+0x6c/0x98 [ 33.671805] kfree+0x114/0x3c8 [ 33.672572] kasan_strings+0x124/0x8d8 [ 33.673189] kunit_try_run_case+0x14c/0x3d0 [ 33.673910] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 33.674780] kthread+0x24c/0x2d0 [ 33.675316] ret_from_fork+0x10/0x20 [ 33.675856] [ 33.676221] The buggy address belongs to the object at fff00000c5921b80 [ 33.676221] which belongs to the cache kmalloc-32 of size 32 [ 33.677683] The buggy address is located 16 bytes inside of [ 33.677683] freed 32-byte region [fff00000c5921b80, fff00000c5921ba0) [ 33.679184] [ 33.679657] The buggy address belongs to the physical page: [ 33.680475] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x105921 [ 33.681551] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 33.682468] page_type: f5(slab) [ 33.683044] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 33.684120] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 33.685068] page dumped because: kasan: bad access detected [ 33.685891] [ 33.686230] Memory state around the buggy address: [ 33.686986] fff00000c5921a80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.688090] fff00000c5921b00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.688958] >fff00000c5921b80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.689941] ^ [ 33.690550] fff00000c5921c00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 33.691528] fff00000c5921c80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 33.692447] ==================================================================
[ 28.923546] ================================================================== [ 28.923975] BUG: KASAN: slab-use-after-free in strlen+0x8f/0xb0 [ 28.924593] Read of size 1 at addr ffff888102a07b90 by task kunit_try_catch/268 [ 28.925508] [ 28.925723] CPU: 1 UID: 0 PID: 268 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241203 #1 [ 28.926239] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.926476] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 28.927267] Call Trace: [ 28.927629] <TASK> [ 28.927918] dump_stack_lvl+0x73/0xb0 [ 28.928338] print_report+0xd1/0x640 [ 28.928823] ? __virt_addr_valid+0x1db/0x2d0 [ 28.929330] ? kasan_complete_mode_report_info+0x64/0x200 [ 28.929905] kasan_report+0x102/0x140 [ 28.930198] ? strlen+0x8f/0xb0 [ 28.930514] ? strlen+0x8f/0xb0 [ 28.930914] __asan_report_load1_noabort+0x18/0x20 [ 28.931437] strlen+0x8f/0xb0 [ 28.931813] kasan_strings+0x425/0xb60 [ 28.932251] ? __pfx_kasan_strings+0x10/0x10 [ 28.932630] ? __schedule+0xc3e/0x2790 [ 28.932995] ? __pfx_read_tsc+0x10/0x10 [ 28.933443] ? ktime_get_ts64+0x86/0x230 [ 28.933866] kunit_try_run_case+0x1b3/0x490 [ 28.934315] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.935123] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 28.935632] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 28.936091] ? __kthread_parkme+0x82/0x160 [ 28.936472] ? preempt_count_sub+0x50/0x80 [ 28.936882] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.937390] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 28.937957] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.938503] kthread+0x257/0x310 [ 28.938908] ? __pfx_kthread+0x10/0x10 [ 28.939239] ret_from_fork+0x41/0x80 [ 28.939737] ? __pfx_kthread+0x10/0x10 [ 28.940150] ret_from_fork_asm+0x1a/0x30 [ 28.940681] </TASK> [ 28.940933] [ 28.941102] Allocated by task 268: [ 28.941487] kasan_save_stack+0x3d/0x60 [ 28.941894] kasan_save_track+0x18/0x40 [ 28.942245] kasan_save_alloc_info+0x3b/0x50 [ 28.942765] __kasan_kmalloc+0xb7/0xc0 [ 28.943154] __kmalloc_cache_noprof+0x184/0x410 [ 28.943699] kasan_strings+0xb9/0xb60 [ 28.943957] kunit_try_run_case+0x1b3/0x490 [ 28.944417] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.944979] kthread+0x257/0x310 [ 28.945354] ret_from_fork+0x41/0x80 [ 28.945814] ret_from_fork_asm+0x1a/0x30 [ 28.946138] [ 28.946382] Freed by task 268: [ 28.946814] kasan_save_stack+0x3d/0x60 [ 28.947234] kasan_save_track+0x18/0x40 [ 28.947614] kasan_save_free_info+0x3f/0x60 [ 28.947989] __kasan_slab_free+0x56/0x70 [ 28.948385] kfree+0x123/0x3f0 [ 28.948749] kasan_strings+0x13c/0xb60 [ 28.948999] kunit_try_run_case+0x1b3/0x490 [ 28.949275] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.949576] kthread+0x257/0x310 [ 28.949807] ret_from_fork+0x41/0x80 [ 28.950101] ret_from_fork_asm+0x1a/0x30 [ 28.950514] [ 28.950730] The buggy address belongs to the object at ffff888102a07b80 [ 28.950730] which belongs to the cache kmalloc-32 of size 32 [ 28.951856] The buggy address is located 16 bytes inside of [ 28.951856] freed 32-byte region [ffff888102a07b80, ffff888102a07ba0) [ 28.953107] [ 28.953330] The buggy address belongs to the physical page: [ 28.954322] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102a07 [ 28.954932] flags: 0x200000000000000(node=0|zone=2) [ 28.955251] page_type: f5(slab) [ 28.955531] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 28.958344] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 28.959830] page dumped because: kasan: bad access detected [ 28.960335] [ 28.961624] Memory state around the buggy address: [ 28.962095] ffff888102a07a80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.963977] ffff888102a07b00: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 28.965011] >ffff888102a07b80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 28.965926] ^ [ 28.966107] ffff888102a07c00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.967262] ffff888102a07c80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 28.967863] ==================================================================