Date
Nov. 27, 2024, 3:37 a.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 51.006365] ================================================================== [ 51.007709] BUG: KASAN: slab-use-after-free in strcmp+0xc0/0xc8 [ 51.008496] Read of size 1 at addr fff00000c616c150 by task kunit_try_catch/248 [ 51.009534] [ 51.010384] CPU: 0 UID: 0 PID: 248 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 51.011634] Tainted: [B]=BAD_PAGE, [N]=TEST [ 51.012782] Hardware name: linux,dummy-virt (DT) [ 51.013639] Call trace: [ 51.014221] show_stack+0x20/0x38 (C) [ 51.014868] dump_stack_lvl+0x8c/0xd0 [ 51.015432] print_report+0x118/0x5e0 [ 51.015974] kasan_report+0xc8/0x118 [ 51.016620] __asan_report_load1_noabort+0x20/0x30 [ 51.017754] strcmp+0xc0/0xc8 [ 51.018426] kasan_strings+0x248/0x8f8 [ 51.019020] kunit_try_run_case+0x14c/0x3d0 [ 51.019736] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.020538] kthread+0x24c/0x2d0 [ 51.021231] ret_from_fork+0x10/0x20 [ 51.021646] [ 51.021815] Allocated by task 248: [ 51.022067] kasan_save_stack+0x3c/0x68 [ 51.022379] kasan_save_track+0x20/0x40 [ 51.022675] kasan_save_alloc_info+0x40/0x58 [ 51.022974] __kasan_kmalloc+0xd4/0xd8 [ 51.023249] __kmalloc_cache_noprof+0x15c/0x3c0 [ 51.025143] kasan_strings+0xb4/0x8f8 [ 51.025895] kunit_try_run_case+0x14c/0x3d0 [ 51.026774] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.027331] kthread+0x24c/0x2d0 [ 51.028225] ret_from_fork+0x10/0x20 [ 51.029040] [ 51.029312] Freed by task 248: [ 51.029860] kasan_save_stack+0x3c/0x68 [ 51.030716] kasan_save_track+0x20/0x40 [ 51.031386] kasan_save_free_info+0x4c/0x78 [ 51.031973] __kasan_slab_free+0x6c/0x98 [ 51.032522] kfree+0x114/0x3c8 [ 51.033916] kasan_strings+0x128/0x8f8 [ 51.034490] kunit_try_run_case+0x14c/0x3d0 [ 51.035072] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 51.035806] kthread+0x24c/0x2d0 [ 51.036420] ret_from_fork+0x10/0x20 [ 51.037157] [ 51.037521] The buggy address belongs to the object at fff00000c616c140 [ 51.037521] which belongs to the cache kmalloc-32 of size 32 [ 51.039440] The buggy address is located 16 bytes inside of [ 51.039440] freed 32-byte region [fff00000c616c140, fff00000c616c160) [ 51.040893] [ 51.041386] The buggy address belongs to the physical page: [ 51.042772] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10616c [ 51.043860] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 51.044830] page_type: f5(slab) [ 51.045352] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 51.046624] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 51.047504] page dumped because: kasan: bad access detected [ 51.048214] [ 51.048619] Memory state around the buggy address: [ 51.049409] fff00000c616c000: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 51.050989] fff00000c616c080: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 51.052055] >fff00000c616c100: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 51.053028] ^ [ 51.053751] fff00000c616c180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 51.054590] fff00000c616c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 51.055351] ==================================================================
[ 28.407556] ================================================================== [ 28.408651] BUG: KASAN: slab-use-after-free in strcmp+0xb0/0xc0 [ 28.409417] Read of size 1 at addr ffff888101ab9950 by task kunit_try_catch/267 [ 28.410387] [ 28.410638] CPU: 1 UID: 0 PID: 267 Comm: kunit_try_catch Tainted: G B N 6.12.0-next-20241127 #1 [ 28.411551] Tainted: [B]=BAD_PAGE, [N]=TEST [ 28.411866] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 28.412930] Call Trace: [ 28.413166] <TASK> [ 28.413405] dump_stack_lvl+0x73/0xb0 [ 28.414026] print_report+0xd1/0x640 [ 28.414782] ? __virt_addr_valid+0x1db/0x2d0 [ 28.415484] ? kasan_complete_mode_report_info+0x64/0x200 [ 28.416156] kasan_report+0x102/0x140 [ 28.416570] ? strcmp+0xb0/0xc0 [ 28.416842] ? strcmp+0xb0/0xc0 [ 28.417320] __asan_report_load1_noabort+0x18/0x20 [ 28.418268] strcmp+0xb0/0xc0 [ 28.418700] kasan_strings+0x2e9/0xb60 [ 28.419027] ? __pfx_kasan_strings+0x10/0x10 [ 28.419962] ? __schedule+0xc3e/0x2790 [ 28.420424] ? __pfx_read_tsc+0x10/0x10 [ 28.420917] ? ktime_get_ts64+0x84/0x230 [ 28.421496] kunit_try_run_case+0x1b3/0x490 [ 28.421820] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.423015] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 28.423639] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 28.424389] ? __kthread_parkme+0x82/0x160 [ 28.424863] ? preempt_count_sub+0x50/0x80 [ 28.425423] ? __pfx_kunit_try_run_case+0x10/0x10 [ 28.425855] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 28.426694] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.427328] kthread+0x257/0x310 [ 28.428602] ? __pfx_kthread+0x10/0x10 [ 28.429163] ret_from_fork+0x41/0x80 [ 28.429682] ? __pfx_kthread+0x10/0x10 [ 28.430211] ret_from_fork_asm+0x1a/0x30 [ 28.430647] </TASK> [ 28.431176] [ 28.431362] Allocated by task 267: [ 28.431744] kasan_save_stack+0x3d/0x60 [ 28.432603] kasan_save_track+0x18/0x40 [ 28.433194] kasan_save_alloc_info+0x3b/0x50 [ 28.433573] __kasan_kmalloc+0xb7/0xc0 [ 28.434142] __kmalloc_cache_noprof+0x184/0x410 [ 28.434609] kasan_strings+0xb3/0xb60 [ 28.435281] kunit_try_run_case+0x1b3/0x490 [ 28.435754] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.436501] kthread+0x257/0x310 [ 28.437302] ret_from_fork+0x41/0x80 [ 28.437602] ret_from_fork_asm+0x1a/0x30 [ 28.438215] [ 28.438452] Freed by task 267: [ 28.438779] kasan_save_stack+0x3d/0x60 [ 28.439620] kasan_save_track+0x18/0x40 [ 28.440188] kasan_save_free_info+0x3f/0x60 [ 28.440573] __kasan_slab_free+0x56/0x70 [ 28.441287] kfree+0x123/0x3f0 [ 28.441609] kasan_strings+0x13a/0xb60 [ 28.442171] kunit_try_run_case+0x1b3/0x490 [ 28.442754] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 28.443518] kthread+0x257/0x310 [ 28.444074] ret_from_fork+0x41/0x80 [ 28.444904] ret_from_fork_asm+0x1a/0x30 [ 28.445423] [ 28.445739] The buggy address belongs to the object at ffff888101ab9940 [ 28.445739] which belongs to the cache kmalloc-32 of size 32 [ 28.447026] The buggy address is located 16 bytes inside of [ 28.447026] freed 32-byte region [ffff888101ab9940, ffff888101ab9960) [ 28.447896] [ 28.448287] The buggy address belongs to the physical page: [ 28.448853] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101ab9 [ 28.449954] flags: 0x200000000000000(node=0|zone=2) [ 28.450863] page_type: f5(slab) [ 28.451438] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 28.452304] raw: 0000000000000000 0000000080400040 00000001f5000000 0000000000000000 [ 28.452792] page dumped because: kasan: bad access detected [ 28.453561] [ 28.453728] Memory state around the buggy address: [ 28.454524] ffff888101ab9800: 00 00 07 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 28.455248] ffff888101ab9880: 00 00 00 fc fc fc fc fc 00 00 07 fc fc fc fc fc [ 28.455861] >ffff888101ab9900: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 28.457108] ^ [ 28.457406] ffff888101ab9980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.457682] ffff888101ab9a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 28.457949] ==================================================================