Date
Dec. 4, 2024, 3:07 p.m.
| Environment | |
|---|---|
| qemu-arm64 | |
| qemu-x86_64 |
[ 35.259050] ================================================================== [ 35.259881] BUG: KASAN: slab-use-after-free in kasan_strings+0x838/0x8d8 [ 35.260714] Read of size 1 at addr fff00000c6643a90 by task kunit_try_catch/247 [ 35.262374] [ 35.262966] CPU: 0 UID: 0 PID: 247 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 35.264458] Tainted: [B]=BAD_PAGE, [N]=TEST [ 35.265037] Hardware name: linux,dummy-virt (DT) [ 35.266254] Call trace: [ 35.267364] show_stack+0x20/0x38 (C) [ 35.268063] dump_stack_lvl+0x8c/0xd0 [ 35.268857] print_report+0x118/0x5e0 [ 35.269425] kasan_report+0xc8/0x118 [ 35.270053] __asan_report_load1_noabort+0x20/0x30 [ 35.271330] kasan_strings+0x838/0x8d8 [ 35.272053] kunit_try_run_case+0x14c/0x3d0 [ 35.272923] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.274182] kthread+0x24c/0x2d0 [ 35.274847] ret_from_fork+0x10/0x20 [ 35.275554] [ 35.275978] Allocated by task 247: [ 35.276713] kasan_save_stack+0x3c/0x68 [ 35.277447] kasan_save_track+0x20/0x40 [ 35.278527] kasan_save_alloc_info+0x40/0x58 [ 35.279076] __kasan_kmalloc+0xd4/0xd8 [ 35.280098] __kmalloc_cache_noprof+0x15c/0x3c0 [ 35.281093] kasan_strings+0xb0/0x8d8 [ 35.282012] kunit_try_run_case+0x14c/0x3d0 [ 35.282668] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.283445] kthread+0x24c/0x2d0 [ 35.283998] ret_from_fork+0x10/0x20 [ 35.284509] [ 35.285013] Freed by task 247: [ 35.285586] kasan_save_stack+0x3c/0x68 [ 35.286203] kasan_save_track+0x20/0x40 [ 35.287309] kasan_save_free_info+0x4c/0x78 [ 35.288131] __kasan_slab_free+0x6c/0x98 [ 35.288832] kfree+0x114/0x3c8 [ 35.289337] kasan_strings+0x124/0x8d8 [ 35.290261] kunit_try_run_case+0x14c/0x3d0 [ 35.290845] kunit_generic_run_threadfn_adapter+0x88/0x100 [ 35.291718] kthread+0x24c/0x2d0 [ 35.292304] ret_from_fork+0x10/0x20 [ 35.292937] [ 35.293254] The buggy address belongs to the object at fff00000c6643a80 [ 35.293254] which belongs to the cache kmalloc-32 of size 32 [ 35.295073] The buggy address is located 16 bytes inside of [ 35.295073] freed 32-byte region [fff00000c6643a80, fff00000c6643aa0) [ 35.296527] [ 35.297149] The buggy address belongs to the physical page: [ 35.297824] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x106643 [ 35.299462] flags: 0xbfffe0000000000(node=0|zone=2|lastcpupid=0x1ffff) [ 35.300990] page_type: f5(slab) [ 35.302036] raw: 0bfffe0000000000 fff00000c0001780 dead000000000122 0000000000000000 [ 35.302835] raw: 0000000000000000 0000000080400040 00000000f5000000 0000000000000000 [ 35.303474] page dumped because: kasan: bad access detected [ 35.304338] [ 35.304694] Memory state around the buggy address: [ 35.305612] fff00000c6643980: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 35.306745] fff00000c6643a00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 35.307953] >fff00000c6643a80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 35.308898] ^ [ 35.309386] fff00000c6643b00: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 35.310416] fff00000c6643b80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 35.311724] ==================================================================
[ 26.068376] ================================================================== [ 26.069599] BUG: KASAN: slab-use-after-free in kasan_strings+0xa0c/0xb60 [ 26.070197] Read of size 1 at addr ffff88810299ded0 by task kunit_try_catch/267 [ 26.070872] [ 26.071276] CPU: 1 UID: 0 PID: 267 Comm: kunit_try_catch Tainted: G B N 6.13.0-rc1-next-20241204 #1 [ 26.072383] Tainted: [B]=BAD_PAGE, [N]=TEST [ 26.072741] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 26.073634] Call Trace: [ 26.073847] <TASK> [ 26.074667] dump_stack_lvl+0x73/0xb0 [ 26.075115] print_report+0xd1/0x640 [ 26.075639] ? __virt_addr_valid+0x1db/0x2d0 [ 26.076317] ? kasan_complete_mode_report_info+0x64/0x200 [ 26.076990] kasan_report+0x102/0x140 [ 26.077531] ? kasan_strings+0xa0c/0xb60 [ 26.078328] ? kasan_strings+0xa0c/0xb60 [ 26.078799] __asan_report_load1_noabort+0x18/0x20 [ 26.079527] kasan_strings+0xa0c/0xb60 [ 26.079818] ? __pfx_kasan_strings+0x10/0x10 [ 26.080397] ? __pfx_kasan_strings+0x10/0x10 [ 26.080768] kunit_try_run_case+0x1b3/0x490 [ 26.081939] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.082592] ? _raw_spin_lock_irqsave+0xa2/0x110 [ 26.083197] ? _raw_spin_unlock_irqrestore+0x5f/0x90 [ 26.083549] ? __kthread_parkme+0x82/0x160 [ 26.084285] ? preempt_count_sub+0x50/0x80 [ 26.084791] ? __pfx_kunit_try_run_case+0x10/0x10 [ 26.085201] ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10 [ 26.086074] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.086523] kthread+0x257/0x310 [ 26.086950] ? __pfx_kthread+0x10/0x10 [ 26.087722] ret_from_fork+0x41/0x80 [ 26.088108] ? __pfx_kthread+0x10/0x10 [ 26.088766] ret_from_fork_asm+0x1a/0x30 [ 26.089628] </TASK> [ 26.089977] [ 26.090133] Allocated by task 267: [ 26.090688] kasan_save_stack+0x3d/0x60 [ 26.091037] kasan_save_track+0x18/0x40 [ 26.091767] kasan_save_alloc_info+0x3b/0x50 [ 26.092210] __kasan_kmalloc+0xb7/0xc0 [ 26.092617] __kmalloc_cache_noprof+0x184/0x410 [ 26.093283] kasan_strings+0xb9/0xb60 [ 26.093559] kunit_try_run_case+0x1b3/0x490 [ 26.094874] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.095511] kthread+0x257/0x310 [ 26.096004] ret_from_fork+0x41/0x80 [ 26.096755] ret_from_fork_asm+0x1a/0x30 [ 26.097419] [ 26.097838] Freed by task 267: [ 26.098483] kasan_save_stack+0x3d/0x60 [ 26.098831] kasan_save_track+0x18/0x40 [ 26.099778] kasan_save_free_info+0x3f/0x60 [ 26.100152] __kasan_slab_free+0x56/0x70 [ 26.100833] kfree+0x123/0x3f0 [ 26.101432] kasan_strings+0x13c/0xb60 [ 26.101891] kunit_try_run_case+0x1b3/0x490 [ 26.102873] kunit_generic_run_threadfn_adapter+0x85/0xf0 [ 26.103741] kthread+0x257/0x310 [ 26.104488] ret_from_fork+0x41/0x80 [ 26.105308] ret_from_fork_asm+0x1a/0x30 [ 26.106220] [ 26.106760] The buggy address belongs to the object at ffff88810299dec0 [ 26.106760] which belongs to the cache kmalloc-32 of size 32 [ 26.107309] The buggy address is located 16 bytes inside of [ 26.107309] freed 32-byte region [ffff88810299dec0, ffff88810299dee0) [ 26.109216] [ 26.109452] The buggy address belongs to the physical page: [ 26.109930] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10299d [ 26.111676] flags: 0x200000000000000(node=0|zone=2) [ 26.112097] page_type: f5(slab) [ 26.112613] raw: 0200000000000000 ffff888100041780 dead000000000122 0000000000000000 [ 26.114037] raw: 0000000000000000 0000000000400040 00000000f5000000 0000000000000000 [ 26.114905] page dumped because: kasan: bad access detected [ 26.116139] [ 26.116486] Memory state around the buggy address: [ 26.116770] ffff88810299dd80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 26.118386] ffff88810299de00: 00 00 00 fc fc fc fc fc 00 00 00 fc fc fc fc fc [ 26.119269] >ffff88810299de80: 00 00 07 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 26.120364] ^ [ 26.121357] ffff88810299df00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 26.122717] ffff88810299df80: 00 00 00 fc fc fc fc fc fa fb fb fb fc fc fc fc [ 26.124064] ==================================================================