Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/06/16 | upstream (ToT) | 4973ca295528 | C | [report] KASAN: use-after-free Read in udf_sync_fs |
syzbot |
sign-in | mailing list | source | docs |
🐞 Open [569] 🐞 Fixed [32] 🐞 Invalid [301] ⬇ Missing Backports [45] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes | 💬 Send us feedback |
Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2023/06/16 | upstream (ToT) | 4973ca295528 | C | [report] KASAN: use-after-free Read in udf_sync_fs |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-6.1 | KASAN: use-after-free Read in udf_sync_fs origin:upstream | C | 6 | 2d11h | 322d | 0/3 | upstream: reported C repro on 2023/06/18 11:33 | ||
upstream | KASAN: use-after-free Read in udf_sync_fs udf | C | done | done | 37 | 129d | 268d | 26/26 | fixed on 2024/02/03 12:44 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/03/31 22:48 | 1h24m | bisect fix | linux-5.15.y | job log (0) log | |
2024/03/01 11:46 | 1h59m | bisect fix | linux-5.15.y | job log (0) log | |
2024/01/21 12:34 | 1h50m | bisect fix | linux-5.15.y | job log (0) log | |
2023/12/07 04:17 | 1h08m | bisect fix | linux-5.15.y | job log (0) log | |
2023/10/21 19:29 | 1h00m | bisect fix | linux-5.15.y | job log (0) log | |
2023/09/21 07:23 | 1h18m | bisect fix | linux-5.15.y | job log (0) log |
option from the mount to silence this warning. ======================================================= UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) ================================================================== BUG: KASAN: use-after-free in crc_itu_t+0x218/0x2a0 lib/crc-itu-t.c:60 Read of size 1 at addr ffff88807333b000 by task syz-executor251/3500 CPU: 1 PID: 3500 Comm: syz-executor251 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 crc_itu_t+0x218/0x2a0 lib/crc-itu-t.c:60 udf_finalize_lvid fs/udf/super.c:2025 [inline] udf_sync_fs+0x1ce/0x380 fs/udf/super.c:2381 sync_filesystem+0xe8/0x220 fs/sync.c:56 generic_shutdown_super+0x6e/0x2c0 fs/super.c:448 kill_block_super+0x7a/0xe0 fs/super.c:1414 deactivate_locked_super+0xa0/0x110 fs/super.c:335 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143 task_work_run+0x129/0x1a0 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0x6a3/0x2480 kernel/exit.c:872 do_group_exit+0x144/0x310 kernel/exit.c:994 __do_sys_exit_group kernel/exit.c:1005 [inline] __se_sys_exit_group kernel/exit.c:1003 [inline] __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1003 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7ffa6c5d7609 Code: Unable to access opcode bytes at RIP 0x7ffa6c5d75df. RSP: 002b:00007fffb0288488 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ffa6c5d7609 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007ffa6c6812d0 R08: ffffffffffffffb0 R09: 0000000000000004 R10: 0000000000001400 R11: 0000000000000246 R12: 00007ffa6c6812d0 R13: 0000000000000000 R14: 00007ffa6c682040 R15: 00007ffa6c5a25c0 </TASK> The buggy address belongs to the page: page:ffffea0001cccec0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x7333b flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff) raw: 00fff80000000000 ffffea0002d60508 ffffea0001c6b888 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as freed page last allocated via order 0, migratetype Movable, gfp_mask 0x1100dca(GFP_HIGHUSER_MOVABLE|__GFP_ZERO), pid 3500, ts 49757444759, free_ts 49786088375 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423 alloc_pages_vma+0x39a/0x800 mm/mempolicy.c:2146 do_anonymous_page mm/memory.c:3808 [inline] handle_pte_fault mm/memory.c:4619 [inline] __handle_mm_fault mm/memory.c:4756 [inline] handle_mm_fault+0x2f49/0x5950 mm/memory.c:4854 do_user_addr_fault arch/x86/mm/fault.c:1388 [inline] handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x271/0x740 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page_list+0x1f7/0x8e0 mm/page_alloc.c:3433 release_pages+0x1bb9/0x1f40 mm/swap.c:963 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:240 [inline] tlb_flush_mmu mm/mmu_gather.c:247 [inline] tlb_finish_mmu+0x177/0x320 mm/mmu_gather.c:338 unmap_region+0x304/0x350 mm/mmap.c:2668 __do_munmap+0x12db/0x1740 mm/mmap.c:2899 __vm_munmap+0x134/0x230 mm/mmap.c:2922 __do_sys_munmap mm/mmap.c:2948 [inline] __se_sys_munmap mm/mmap.c:2944 [inline] __x64_sys_munmap+0x67/0x70 mm/mmap.c:2944 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Memory state around the buggy address: ffff88807333af00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807333af80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88807333b000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88807333b080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807333b100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/04/25 16:45 | linux-5.15.y | c52b9710c83d | 8bdc0f22 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | |
2024/04/23 00:14 | linux-5.15.y | c52b9710c83d | 36c961ad | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | |
2023/06/16 18:52 | linux-5.15.y | 471e639e59d1 | f3921d4d | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | |
2023/06/28 04:46 | linux-5.15.y | f67653019430 | 4cd5bb25 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | |
2023/06/23 17:52 | linux-5.15.y | f67653019430 | 79782afc | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | |
2023/06/20 20:35 | linux-5.15.y | 471e639e59d1 | 09ffe269 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | |
2024/04/22 22:40 | linux-5.15.y | c52b9710c83d | 36c961ad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | ||
2024/04/22 22:39 | linux-5.15.y | c52b9710c83d | 36c961ad | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | ||
2023/12/22 04:25 | linux-5.15.y | 1d146b1875fc | 4f9530a3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | ||
2023/11/06 20:44 | linux-5.15.y | 12952a23a5da | 78fae24e | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs | ||
2023/07/07 21:52 | linux-5.15.y | d54cfc420586 | 668cb1fa | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in udf_sync_fs |