| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <6933f675.a70a0220.38f243.001f.GAE@google.com> Date: Sat, 06 Dec 2025 01:25:09 -0800 From: syzbot ci <syzbot+ciba1be8bde19c605d@...kaller.appspotmail.com> To: david.hunter.linux@...il.com, frank.li@...o.com, glaubitz@...sik.fu-berlin.de, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, skhan@...uxfoundation.org, slava@...eyko.com, swarajgaikwad1925@...il.com, syzbot@...kaller.appspotmail.com, syzkaller-bugs@...glegroups.com Cc: syzbot@...ts.linux.dev, syzkaller-bugs@...glegroups.com Subject: [syzbot ci] Re: hfsplus: fix memory leak on mount failure syzbot ci has tested the following series [v1] hfsplus: fix memory leak on mount failure https://lore.kernel.org/all/20251206000902.71178-1-swarajgaikwad1925@gmail.com * [PATCH v1] hfsplus: fix memory leak on mount failure and found the following issues: * SYZFAIL: failed to recv rpc * WARNING: ODEBUG bug in hfsplus_kill_sb * general protection fault in __timer_delete * general protection fault in hfsplus_sync_fs Full report is available here: https://ci.syzbot.org/series/ea775ab1-67a5-4497-b4d6-8c7b2b7d90aa *** SYZFAIL: failed to recv rpc tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: 2061f18ad76ecaddf8ed17df81b8611ea88dbddd arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/591f3943-d010-4b2d-a026-67cc75802376/config C repro: https://ci.syzbot.org/findings/53a2b5e3-41ae-4650-9300-ec3fdd87f47a/c_repro syz repro: https://ci.syzbot.org/findings/53a2b5e3-41ae-4650-9300-ec3fdd87f47a/syz_repro SYZFAIL: failed to recv rpc *** WARNING: ODEBUG bug in hfsplus_kill_sb tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: 2061f18ad76ecaddf8ed17df81b8611ea88dbddd arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/591f3943-d010-4b2d-a026-67cc75802376/config C repro: https://ci.syzbot.org/findings/3c918e05-49e7-4855-bee1-5aafc9a5b5a4/c_repro syz repro: https://ci.syzbot.org/findings/3c918e05-49e7-4855-bee1-5aafc9a5b5a4/syz_repro ------------[ cut here ]------------ ODEBUG: free active (active state 0) object: ffff88810a17ea38 object type: timer_list hint: delayed_sync_fs+0x0/0xf0 fs/hfsplus/super.c:-1 WARNING: lib/debugobjects.c:615 at 0x0, CPU#1: syz-executor/5946 Modules linked in: CPU: 1 UID: 0 PID: 5946 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:debug_print_object lib/debugobjects.c:612 [inline] RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline] RIP: 0010:debug_check_no_obj_freed+0x44a/0x550 lib/debugobjects.c:1129 Code: 89 44 24 20 e8 47 4a 92 fd 48 8b 44 24 20 4c 8b 4d 00 4c 89 ef 48 c7 c6 20 02 c0 8b 48 c7 c2 40 07 c0 8b 8b 0c 24 4d 89 f8 50 <67> 48 0f b9 3a 48 83 c4 08 4c 8b 6c 24 18 48 b9 00 00 00 00 00 fc RSP: 0018:ffffc900032b7c18 EFLAGS: 00010246 RAX: ffffffff829ca540 RBX: ffffffff99a849a0 RCX: 0000000000000000 RDX: ffffffff8bc00740 RSI: ffffffff8bc00220 RDI: ffffffff8f8b7a70 RBP: ffffffff8b6d2540 R08: ffff88810a17ea38 R09: ffffffff8b6d36a0 R10: dffffc0000000000 R11: ffffffff81ae6210 R12: ffff88810a17ec00 R13: ffffffff8f8b7a70 R14: ffff88810a17e000 R15: ffff88810a17ea38 FS: 0000555587657500(0000) GS:ffff8882a9e8e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b55b316738 CR3: 0000000175d56000 CR4: 00000000000006f0 Call Trace: <TASK> slab_free_hook mm/slub.c:2471 [inline] slab_free mm/slub.c:6663 [inline] kfree+0x13b/0x660 mm/slub.c:6871 hfsplus_kill_sb+0x72/0xb0 fs/hfsplus/super.c:717 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xff/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f540cf90af7 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffc80b82ab8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f540cfee72f RCX: 00007f540cf90af7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc80b82b70 RBP: 00007ffc80b82b70 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc80b83c00 R13: 00007f540cfee72f R14: 000000000001120e R15: 00007ffc80b83c40 </TASK> ---------------- Code disassembly (best guess): 0: 89 44 24 20 mov %eax,0x20(%rsp) 4: e8 47 4a 92 fd call 0xfd924a50 9: 48 8b 44 24 20 mov 0x20(%rsp),%rax e: 4c 8b 4d 00 mov 0x0(%rbp),%r9 12: 4c 89 ef mov %r13,%rdi 15: 48 c7 c6 20 02 c0 8b mov $0xffffffff8bc00220,%rsi 1c: 48 c7 c2 40 07 c0 8b mov $0xffffffff8bc00740,%rdx 23: 8b 0c 24 mov (%rsp),%ecx 26: 4d 89 f8 mov %r15,%r8 29: 50 push %rax * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 48 83 c4 08 add $0x8,%rsp 33: 4c 8b 6c 24 18 mov 0x18(%rsp),%r13 38: 48 rex.W 39: b9 00 00 00 00 mov $0x0,%ecx 3e: 00 fc add %bh,%ah *** general protection fault in __timer_delete tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: 2061f18ad76ecaddf8ed17df81b8611ea88dbddd arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/591f3943-d010-4b2d-a026-67cc75802376/config syz repro: https://ci.syzbot.org/findings/58118c78-00cf-40ba-b5b2-a878d7311794/syz_repro Oops: general protection fault, probably for non-canonical address 0xdffffc0000000048: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000240-0x0000000000000247] CPU: 1 UID: 0 PID: 5944 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:timer_is_static_object+0x26/0x80 kernel/time/timer.c:691 Code: 90 90 90 90 f3 0f 1e fa 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 95 e8 12 00 4c 8d 73 08 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 8b e0 78 00 49 83 3e 00 74 09 e8 RSP: 0018:ffffc900044279a8 EFLAGS: 00010006 RAX: 0000000000000048 RBX: 0000000000000238 RCX: ffff88817417d7c0 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000238 RBP: ffffffff99a2bcc0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: ffffffff81ae62d0 R12: ffffffff8b6d2550 R13: fffffffffffffffe R14: 0000000000000240 R15: dffffc0000000000 FS: 000055555c51f500(0000) GS:ffff8882a9e8e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd2077ec08 CR3: 00000001138de000 CR4: 00000000000006f0 Call Trace: <TASK> lookup_object_or_alloc lib/debugobjects.c:679 [inline] debug_object_assert_init+0x16f/0x380 lib/debugobjects.c:1008 debug_timer_assert_init kernel/time/timer.c:803 [inline] debug_assert_init kernel/time/timer.c:848 [inline] __timer_delete+0x31/0x390 kernel/time/timer.c:1366 try_to_grab_pending kernel/workqueue.c:2061 [inline] work_grab_pending+0x121/0x990 kernel/workqueue.c:2154 __cancel_work+0x85/0x2c0 kernel/workqueue.c:4368 __cancel_work_sync+0x1f/0x110 kernel/workqueue.c:4385 hfsplus_put_super+0x56/0x3e0 fs/hfsplus/super.c:328 generic_shutdown_super+0x135/0x2c0 fs/super.c:643 kill_block_super+0x44/0x90 fs/super.c:1730 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xff/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3b71f90af7 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd2077f3b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f3b71fee72f RCX: 00007f3b71f90af7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd2077f470 RBP: 00007ffd2077f470 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd20780500 R13: 00007f3b71fee72f R14: 000000000000f9eb R15: 00007ffd20780540 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:timer_is_static_object+0x26/0x80 kernel/time/timer.c:691 Code: 90 90 90 90 f3 0f 1e fa 41 57 41 56 53 48 89 fb 49 bf 00 00 00 00 00 fc ff df e8 95 e8 12 00 4c 8d 73 08 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 8b e0 78 00 49 83 3e 00 74 09 e8 RSP: 0018:ffffc900044279a8 EFLAGS: 00010006 RAX: 0000000000000048 RBX: 0000000000000238 RCX: ffff88817417d7c0 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000238 RBP: ffffffff99a2bcc0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: ffffffff81ae62d0 R12: ffffffff8b6d2550 R13: fffffffffffffffe R14: 0000000000000240 R15: dffffc0000000000 FS: 000055555c51f500(0000) GS:ffff8882a9e8e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd2077ec08 CR3: 00000001138de000 CR4: 00000000000006f0 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: f3 0f 1e fa endbr64 8: 41 57 push %r15 a: 41 56 push %r14 c: 53 push %rbx d: 48 89 fb mov %rdi,%rbx 10: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 17: fc ff df 1a: e8 95 e8 12 00 call 0x12e8b4 1f: 4c 8d 73 08 lea 0x8(%rbx),%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 8b e0 78 00 call 0x78e0c4 39: 49 83 3e 00 cmpq $0x0,(%r14) 3d: 74 09 je 0x48 3f: e8 .byte 0xe8 *** general protection fault in hfsplus_sync_fs tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: 2061f18ad76ecaddf8ed17df81b8611ea88dbddd arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/591f3943-d010-4b2d-a026-67cc75802376/config C repro: https://ci.syzbot.org/findings/990368ba-5843-438f-bf7c-132c134aa1f3/c_repro syz repro: https://ci.syzbot.org/findings/990368ba-5843-438f-bf7c-132c134aa1f3/syz_repro Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] CPU: 0 UID: 0 PID: 5946 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:hfsplus_sync_fs+0x70/0x3d0 fs/hfsplus/super.c:255 Code: 31 ff 89 ee e8 31 a9 24 ff 85 ed 0f 84 71 01 00 00 4c 89 24 24 0f 1f 44 00 00 e8 db a4 24 ff 4d 8d 7e 28 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 d2 9c 8a ff 4d 8b 3f 49 83 c7 08 4c RSP: 0018:ffffc900036e7a48 EFLAGS: 00010206 RAX: 0000000000000005 RBX: dffffc0000000000 RCX: ffff88810bbc57c0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffc900036e78a7 R09: 1ffff920006dcf14 R10: dffffc0000000000 R11: ffffffff829ca640 R12: ffff88811624e000 R13: ffff88811624e158 R14: 0000000000000000 R15: 0000000000000028 FS: 0000555564915500(0000) GS:ffff88818ea8e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00003e720 CR3: 0000000011796000 CR4: 00000000000006f0 Call Trace: <TASK> sync_filesystem+0x1cf/0x230 fs/sync.c:66 generic_shutdown_super+0x6f/0x2c0 fs/super.c:622 kill_block_super+0x44/0x90 fs/super.c:1730 deactivate_locked_super+0xbc/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1318 task_work_run+0x1d4/0x260 kernel/task_work.c:233 get_signal+0x11ec/0x1340 kernel/signal.c:2807 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4f0 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2e3/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdd6ef90af7 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffd2aacb428 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007fdd6efee72f RCX: 00007fdd6ef90af7 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd2aacb4e0 RBP: 00007ffd2aacb4e0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd2aacc570 R13: 00007fdd6efee72f R14: 000000000000febb R15: 00007ffd2aacc5b0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfsplus_sync_fs+0x70/0x3d0 fs/hfsplus/super.c:255 Code: 31 ff 89 ee e8 31 a9 24 ff 85 ed 0f 84 71 01 00 00 4c 89 24 24 0f 1f 44 00 00 e8 db a4 24 ff 4d 8d 7e 28 4c 89 f8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ff e8 d2 9c 8a ff 4d 8b 3f 49 83 c7 08 4c RSP: 0018:ffffc900036e7a48 EFLAGS: 00010206 RAX: 0000000000000005 RBX: dffffc0000000000 RCX: ffff88810bbc57c0 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffc900036e78a7 R09: 1ffff920006dcf14 R10: dffffc0000000000 R11: ffffffff829ca640 R12: ffff88811624e000 R13: ffff88811624e158 R14: 0000000000000000 R15: 0000000000000028 FS: 0000555564915500(0000) GS:ffff8882a9e8e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ccfe37e9e0 CR3: 0000000011796000 CR4: 00000000000006f0 ---------------- Code disassembly (best guess): 0: 31 ff xor %edi,%edi 2: 89 ee mov %ebp,%esi 4: e8 31 a9 24 ff call 0xff24a93a 9: 85 ed test %ebp,%ebp b: 0f 84 71 01 00 00 je 0x182 11: 4c 89 24 24 mov %r12,(%rsp) 15: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1a: e8 db a4 24 ff call 0xff24a4fa 1f: 4d 8d 7e 28 lea 0x28(%r14),%r15 23: 4c 89 f8 mov %r15,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 ff mov %r15,%rdi 33: e8 d2 9c 8a ff call 0xff8a9d0a 38: 4d 8b 3f mov (%r15),%r15 3b: 49 83 c7 08 add $0x8,%r15 3f: 4c rex.WR *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@...kaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@...glegroups.com.
Powered by blists - more mailing lists