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[syzbot] [bcachefs?] KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | 0 (1) | 2024/05/06 07:01 |
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[syzbot] [bcachefs?] KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | 0 (1) | 2024/05/06 07:01 |
loop0: detected capacity change from 0 to 32768 ================================================================== BUG: KASAN: slab-out-of-bounds in bch2_sb_downgrade_to_text+0x15ab/0x1f70 fs/bcachefs/sb-downgrade.c:185 Read of size 2 at addr ffff888046d0e000 by task syz-executor101/5072 CPU: 0 PID: 5072 Comm: syz-executor101 Not tainted 6.9.0-rc7-syzkaller-00183-gcf87f46fd34d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 bch2_sb_downgrade_to_text+0x15ab/0x1f70 fs/bcachefs/sb-downgrade.c:185 bch2_sb_field_validate+0x1f7/0x2d0 fs/bcachefs/super-io.c:1228 bch2_sb_validate+0xa79/0xe10 fs/bcachefs/super-io.c:468 __bch2_read_super+0xc9a/0x1460 fs/bcachefs/super-io.c:822 bch2_fs_open+0x246/0xdf0 fs/bcachefs/super.c:2052 bch2_mount+0x71d/0x1320 fs/bcachefs/fs.c:1903 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2a0 fs/super.c:1779 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6724a238ba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffea52ba178 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffea52ba190 RCX: 00007f6724a238ba RDX: 0000000020011a00 RSI: 0000000020011a40 RDI: 00007ffea52ba190 RBP: 0000000000000010 R08: 00007ffea52ba1d0 R09: 00000000000119ef R10: 0000000000000010 R11: 0000000000000282 R12: 0000000000000004 R13: 00007ffea52ba1d0 R14: 0000000000000003 R15: 0000000001000000 </TASK> Allocated by task 5072: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:3972 [inline] __kmalloc_node_track_caller+0x24e/0x4f0 mm/slub.c:3992 __do_krealloc mm/slab_common.c:1192 [inline] krealloc+0x7d/0x120 mm/slab_common.c:1225 bch2_sb_realloc+0x2fc/0x660 fs/bcachefs/super-io.c:189 read_one_super+0x757/0x3400 fs/bcachefs/super-io.c:659 __bch2_read_super+0x65a/0x1460 fs/bcachefs/super-io.c:750 bch2_fs_open+0x246/0xdf0 fs/bcachefs/super.c:2052 bch2_mount+0x71d/0x1320 fs/bcachefs/fs.c:1903 legacy_get_tree+0xee/0x190 fs/fs_context.c:662 vfs_get_tree+0x90/0x2a0 fs/super.c:1779 do_new_mount+0x2be/0xb40 fs/namespace.c:3352 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount+0x2d9/0x3c0 fs/namespace.c:3875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888046d0c000 which belongs to the cache kmalloc-8k of size 8192 The buggy address is located 0 bytes to the right of allocated 8192-byte region [ffff888046d0c000, ffff888046d0e000) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x46d08 head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888015042280 0000000000000000 0000000000000001 raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000 head: 00fff00000000840 ffff888015042280 0000000000000000 0000000000000001 head: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000 head: 00fff00000000003 ffffea00011b4201 dead000000000122 00000000ffffffff head: 0000000800000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 4733, tgid 4733 (sh), ts 32583600609, free_ts 32564548664 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1ea/0x210 mm/page_alloc.c:1534 prep_new_page mm/page_alloc.c:1541 [inline] get_page_from_freelist+0x3410/0x35b0 mm/page_alloc.c:3317 __alloc_pages+0x256/0x6c0 mm/page_alloc.c:4575 __alloc_pages_node include/linux/gfp.h:238 [inline] alloc_pages_node include/linux/gfp.h:261 [inline] alloc_slab_page+0x5f/0x160 mm/slub.c:2180 allocate_slab mm/slub.c:2343 [inline] new_slab+0x84/0x2f0 mm/slub.c:2396 ___slab_alloc+0xc73/0x1260 mm/slub.c:3530 __slab_alloc mm/slub.c:3615 [inline] __slab_alloc_node mm/slub.c:3668 [inline] slab_alloc_node mm/slub.c:3841 [inline] kmalloc_trace+0x269/0x370 mm/slub.c:3998 kmalloc include/linux/slab.h:628 [inline] kzalloc include/linux/slab.h:749 [inline] tomoyo_print_bprm security/tomoyo/audit.c:26 [inline] tomoyo_init_log+0x11ce/0x2050 security/tomoyo/audit.c:264 tomoyo_supervisor+0x38a/0x11f0 security/tomoyo/common.c:2089 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x1384/0x1cf0 security/tomoyo/domain.c:878 tomoyo_bprm_check_security+0x115/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x65/0x90 security/security.c:1191 search_binary_handler fs/exec.c:1766 [inline] exec_binprm fs/exec.c:1820 [inline] bprm_execve+0xa56/0x17c0 fs/exec.c:1872 do_execveat_common+0x553/0x700 fs/exec.c:1979 do_execve fs/exec.c:2053 [inline] __do_sys_execve fs/exec.c:2129 [inline] __se_sys_execve fs/exec.c:2124 [inline] __x64_sys_execve+0x92/0xb0 fs/exec.c:2124 page last free pid 4733 tgid 4733 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1141 [inline] free_unref_page_prepare+0x97b/0xaa0 mm/page_alloc.c:2347 free_unref_page+0x37/0x3f0 mm/page_alloc.c:2487 discard_slab mm/slub.c:2442 [inline] __put_partials+0xeb/0x130 mm/slub.c:2911 put_cpu_partial+0x17c/0x250 mm/slub.c:2986 __slab_free+0x2ea/0x3d0 mm/slub.c:4157 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x5e/0xc0 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3804 [inline] slab_alloc_node mm/slub.c:3851 [inline] __do_kmalloc_node mm/slub.c:3971 [inline] __kmalloc+0x1e2/0x4a0 mm/slub.c:3985 kmalloc include/linux/slab.h:632 [inline] tomoyo_add_entry security/tomoyo/common.c:2023 [inline] tomoyo_supervisor+0xe0a/0x11f0 security/tomoyo/common.c:2095 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x178/0x210 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x1384/0x1cf0 security/tomoyo/domain.c:878 tomoyo_bprm_check_security+0x115/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x65/0x90 security/security.c:1191 search_binary_handler fs/exec.c:1766 [inline] exec_binprm fs/exec.c:1820 [inline] bprm_execve+0xa56/0x17c0 fs/exec.c:1872 do_execveat_common+0x553/0x700 fs/exec.c:1979 Memory state around the buggy address: ffff888046d0df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888046d0df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888046d0e000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888046d0e080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888046d0e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/05/12 06:48 | upstream | cf87f46fd34d | 9026e142 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/12 05:49 | upstream | cf87f46fd34d | 9026e142 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/12 04:25 | upstream | cf87f46fd34d | 9026e142 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci-upstream-kasan-gce-smack-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/06 01:32 | upstream | b9158815de52 | 610f2a54 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/06 01:01 | upstream | b9158815de52 | 610f2a54 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/06 00:41 | upstream | b9158815de52 | 610f2a54 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/05 18:39 | upstream | 7367539ad4b0 | 610f2a54 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci-upstream-kasan-gce-smack-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/05 19:01 | linux-next | 9221b2819b8a | 610f2a54 | .config | strace log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/15 08:07 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | fda5695d692c | fdb4c10c | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/15 07:07 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | fda5695d692c | fdb4c10c | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/12 04:20 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | fda5695d692c | 9026e142 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/05 18:33 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 78186bd77b47 | 610f2a54 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] [mounted in repro] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | |
2024/05/12 04:11 | upstream | cf87f46fd34d | 9026e142 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-selinux-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/12 04:07 | upstream | cf87f46fd34d | 9026e142 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 23:09 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-badwrites-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 20:59 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:57 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:57 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-fs | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:26 | upstream | 7367539ad4b0 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:26 | upstream | 7367539ad4b0 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-smack-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:21 | upstream | 7367539ad4b0 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-selinux-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:21 | upstream | 7367539ad4b0 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kasan-gce-selinux-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 20:54 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 20:54 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/12 04:12 | upstream | cf87f46fd34d | 9026e142 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream-386 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 20:31 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream-386 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 20:31 | upstream | b9158815de52 | 610f2a54 | .config | console log | report | info | [disk image (non-bootable)] [vmlinux] [kernel image] | ci-qemu-upstream-386 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:33 | linux-next | 9221b2819b8a | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:31 | linux-next | 9221b2819b8a | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-linux-next-kasan-gce-root | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/19 08:14 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | fda5695d692c | c0f1611a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:23 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 78186bd77b47 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text | ||
2024/05/05 18:23 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | 78186bd77b47 | 610f2a54 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | KASAN: slab-out-of-bounds Read in bch2_sb_downgrade_to_text |