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Sun, 22 Dec 2024 02:44:22 -0800 (PST) Date: Sun, 22 Dec 2024 02:44:22 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6767ed86.050a0220.25abdd.013f.GAE@google.com> Subject: [syzbot] [mm?] general protection fault in workingset_refault From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 2B6D1C0008 X-Rspam-User: X-Stat-Signature: fc915owi7y5xu898qn854fcryjsxq1zo X-HE-Tag: 1734864225-624468 X-HE-Meta: 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 jHRr/opE 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 USBO8uoO txtuR+Okuf28vSucRW8D2L2kDsuU/BMXb3ZKv0P10lrXy95fcFkkkilerUIf+5DktQ025ka4jIWaCt4dDTkREUq6PhW8GckYgIdwj5LpHAa6FHV2Uos0oLNYlZVx8YICawbTek3u88tIEyxP/NcMfoRSUi3xK6Jc6WoMrsJ3GfqtLysyamMZf7CtlkqbZuYpL2vbSOryrG8itf4LKeJ2svYdbOzKDgAhpMHYZ5ccz9JYiMjTgcrLi3qwTrb5mdZFayN1PWJI5/MY19M/X54mf3mZt9Flkit/8gGnzSzhmPHu0GgyV2SgGuELGMSfyM/Px/69/X8XTWtLcr8/RkP40FJMiu3+Y4aaWs6OTrgC2WQg7UXhNRSecEGyS3a9npLaxxHUnFfg0iHlzk+tV/RtTmcta/oViWe8 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, syzbot found the following issue on: HEAD commit: 8faabc041a00 Merge tag 'net-6.13-rc4' of git://git.kernel... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10f39cf8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=c22efbd20f8da769 dashboard link: https://syzkaller.appspot.com/bug?extid=d21d8cd32443d6fbded1 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0bdb6cecaf61/disk-8faabc04.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/98b22dfadac0/vmlinux-8faabc04.xz kernel image: https://storage.googleapis.com/syzbot-assets/65a511d3ba7f/bzImage-8faabc04.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d21d8cd32443d6fbded1@syzkaller.appspotmail.com Oops: general protection fault, probably for non-canonical address 0xdffffc0000000998: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: probably user-memory-access in range [0x0000000000004cc0-0x0000000000004cc7] CPU: 1 UID: 0 PID: 6298 Comm: syz.0.89 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:mem_cgroup_lruvec include/linux/memcontrol.h:707 [inline] RIP: 0010:lru_gen_test_recent mm/workingset.c:274 [inline] RIP: 0010:lru_gen_refault mm/workingset.c:293 [inline] RIP: 0010:workingset_refault+0x234/0x1390 mm/workingset.c:548 Code: d2 6f b9 ff 4d 85 f6 0f 84 80 07 00 00 e8 c4 6f b9 ff 49 8d bf c0 4c 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e ac 0d 00 00 49 63 87 c0 4c 00 RSP: 0018:ffffc9000b1e78f0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffea000153d240 RCX: ffffc9000b429000 RDX: 0000000000000998 RSI: ffffffff81dfdf2c RDI: 0000000000004cc0 RBP: 1ffff9200163cf24 R08: 0000000000000000 R09: fffffbfff2039c42 R10: ffffffff901ce217 R11: 0000000000000003 R12: 00fff00000000001 R13: 0000000000000dff R14: ffff888140adc000 R15: 0000000000000000 FS: 00007efe392656c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000788be000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: filemap_add_folio+0x1b0/0x220 mm/filemap.c:986 do_read_cache_folio+0x239/0x5c0 mm/filemap.c:3793 freader_get_folio+0x337/0x8e0 lib/buildid.c:77 freader_fetch+0xc2/0x5b0 lib/buildid.c:120 __build_id_parse.isra.0+0xef/0x770 lib/buildid.c:305 do_procmap_query+0xdb2/0xfe0 fs/proc/task_mmu.c:534 procfs_procmap_ioctl+0x7d/0xb0 fs/proc/task_mmu.c:613 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:906 [inline] __se_sys_ioctl fs/ioctl.c:892 [inline] __x64_sys_ioctl+0x190/0x200 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efe38385d29 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:00007efe39265038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007efe38575fa0 RCX: 00007efe38385d29 RDX: 0000000020000180 RSI: 00000000c0686611 RDI: 0000000000000003 RBP: 00007efe38401aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007efe38575fa0 R15: 00007ffc63357c18 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:mem_cgroup_lruvec include/linux/memcontrol.h:707 [inline] RIP: 0010:lru_gen_test_recent mm/workingset.c:274 [inline] RIP: 0010:lru_gen_refault mm/workingset.c:293 [inline] RIP: 0010:workingset_refault+0x234/0x1390 mm/workingset.c:548 Code: d2 6f b9 ff 4d 85 f6 0f 84 80 07 00 00 e8 c4 6f b9 ff 49 8d bf c0 4c 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e ac 0d 00 00 49 63 87 c0 4c 00 RSP: 0018:ffffc9000b1e78f0 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffffea000153d240 RCX: ffffc9000b429000 RDX: 0000000000000998 RSI: ffffffff81dfdf2c RDI: 0000000000004cc0 RBP: 1ffff9200163cf24 R08: 0000000000000000 R09: fffffbfff2039c42 R10: ffffffff901ce217 R11: 0000000000000003 R12: 00fff00000000001 R13: 0000000000000dff R14: ffff888140adc000 R15: 0000000000000000 FS: 00007efe392656c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3073d1 CR3: 00000000788be000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 6f outsl %ds:(%rsi),(%dx) 1: b9 ff 4d 85 f6 mov $0xf6854dff,%ecx 6: 0f 84 80 07 00 00 je 0x78c c: e8 c4 6f b9 ff call 0xffb96fd5 11: 49 8d bf c0 4c 00 00 lea 0x4cc0(%r15),%rdi 18: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1f: fc ff df 22: 48 89 fa mov %rdi,%rdx 25: 48 c1 ea 03 shr $0x3,%rdx * 29: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax <-- trapping instruction 2d: 84 c0 test %al,%al 2f: 74 08 je 0x39 31: 3c 03 cmp $0x3,%al 33: 0f 8e ac 0d 00 00 jle 0xde5 39: 49 rex.WB 3a: 63 .byte 0x63 3b: 87 c0 xchg %eax,%eax 3d: 4c rex.WR --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup