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AJvYcCUta9dun4BdcZ8tt1+I0X2tsCsl6l4hDPdrfTPefdJ5L4BsliLJbDPvmTaPjnWp60r1FPopT7aqhN0QV8Q=@vger.kernel.org X-Gm-Message-State: AOJu0Yy7QaYwCbMGMsv/lpiNdCgHUvnJjqvFq/kBbXfJhUAVwALNmSjH 8Zyw+p3q4+KW6onZxOPWBBaKyJCWT/jVbaPwYE7xqI4IxQVqHAp+ULnREtqHJaScqTT7BL2lkw6 jrtELWum2YJpo9T/HwMRehe78HEhsBbvlAJliXFOCzy5p2FxX5n3eRK8Y854= X-Google-Smtp-Source: AGHT+IH+siDKdFbZtTVGW7dEqtBN8fVjf37uuXsXnaxWSUi3MPhiVKouuoIOYEvnmll1Nb6gVcfOyLsShM3X1S1juwr/6D+VKpm3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2181:b0:424:71e8:3a2e with SMTP id e9e14a558f8ab-42581e7a670mr75765285ab.16.1758711722915; Wed, 24 Sep 2025 04:02:02 -0700 (PDT) Date: Wed, 24 Sep 2025 04:02:02 -0700 In-Reply-To: <20250924100341.1255033-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68d3cfaa.a70a0220.1b52b.02c9.GAE@google.com> Subject: Re: [syzbot] [fs?] [mm?] WARNING: bad unlock balance in hugetlb_vmdelete_list From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in hugetlb_vma_assert_locked ------------[ cut here ]------------ WARNING: mm/hugetlb.c:368 at hugetlb_vma_assert_locked+0x1dd/0x250 mm/hugetlb.c:368, CPU#1: syz.0.28/6594 Modules linked in: CPU: 1 UID: 0 PID: 6594 Comm: syz.0.28 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:hugetlb_vma_assert_locked+0x1dd/0x250 mm/hugetlb.c:368 Code: 2e e8 97 6e a1 ff eb 0c e8 90 6e a1 ff eb 05 e8 89 6e a1 ff 5b 41 5c 41 5d 41 5e 41 5f 5d e9 da 41 6a 09 cc e8 74 6e a1 ff 90 <0f> 0b 90 eb e5 e8 69 6e a1 ff 90 0f 0b 90 eb da 48 c7 c1 70 7c e4 RSP: 0018:ffffc90003637368 EFLAGS: 00010293 RAX: ffffffff821f22cc RBX: 0000000000000000 RCX: ffff888030330000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff520006c6e70 R12: ffff888026856500 R13: 1ffff1100bd744fc R14: dffffc0000000000 R15: 0000000000000080 FS: 00007fb2310906c0(0000) GS:ffff8881258c5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb23108ff98 CR3: 0000000075cce000 CR4: 00000000003526f0 Call Trace: huge_pmd_unshare+0x2c8/0x540 mm/hugetlb.c:7622 __unmap_hugepage_range+0x6e3/0x1aa0 mm/hugetlb.c:5901 unmap_hugepage_range+0x32e/0x410 mm/hugetlb.c:6089 hugetlb_vmdelete_list+0x189/0x1f0 fs/hugetlbfs/inode.c:495 hugetlb_vmtruncate fs/hugetlbfs/inode.c:643 [inline] hugetlbfs_setattr+0x4d1/0x6d0 fs/hugetlbfs/inode.c:881 notify_change+0xc1a/0xf40 fs/attr.c:546 do_truncate+0x1a4/0x220 fs/open.c:68 handle_truncate fs/namei.c:3516 [inline] do_open fs/namei.c:3899 [inline] path_openat+0x306c/0x3830 fs/namei.c:4054 do_filp_open+0x1fa/0x410 fs/namei.c:4081 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_open fs/open.c:1460 [inline] __se_sys_open fs/open.c:1456 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1456 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb23018eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb231090038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fb2303e5fa0 RCX: 00007fb23018eec9 RDX: 0000000000000100 RSI: 000000000014927e RDI: 0000200000000340 RBP: 00007fb230211f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb2303e6038 R14: 00007fb2303e5fa0 R15: 00007fff95fa5748 Tested on: commit: ce7f1a98 Add linux-next specific files for 20250923 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=129a4d34580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1be6fa3d47bce66e dashboard link: https://syzkaller.appspot.com/bug?extid=62edf7e27b2e8f754525 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=17b2cce2580000