ci2 starts bisection 2022-12-20 18:54:53.659852614 +0000 UTC m=+5234.566418209 bisecting cause commit starting from aeba12b26c79fc35e07e511f692a8907037d95da building syzkaller on c52b2efbf83e9d66fa9fa7b5416aa8eb4b839f20 ensuring issue is reproducible on original commit aeba12b26c79fc35e07e511f692a8907037d95da testing commit aeba12b26c79fc35e07e511f692a8907037d95da gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 86e1ae870c5826cc3931badcfd056a4b69ad498b539cb330a885b0484f65918b all runs: crashed: possible deadlock in ntfs_set_state testing release v6.1 testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 97476b26dd5781e1f008abe2bbc3a3925112d86fb14031f244e201d0c07a5f11 all runs: crashed: possible deadlock in ntfs_set_state testing release v6.0 testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 102a7152b7b45359b929cfd7ed93c6e22cb4221e186fc91276faaa1bebd7fb77 all runs: crashed: possible deadlock in ntfs_set_state testing release v5.19 testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4b230f332b5d9c25b31e926553ec0ee1522184c875ee98211f918ffb53284546 run #0: crashed: BUG: unable to handle kernel paging request in ktime_get_coarse_real_ts64 run #1: crashed: BUG: looking up invalid subclass: ADDR run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK reproducer seems to be flaky testing release v5.18 testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 5fda5fe8dc00d3398980f35442a7e4ffcb5686085db14e5f7bd5c7dcafefed7a all runs: OK # git bisect start 3d7cb6b04c3f3115719235cc6866b10326de34cd 4b0986a3613c92f4ec1bdc7f60ec66fea135991f Bisecting: 8493 revisions left to test after this (roughly 13 steps) [c011dd537ffe47462051930413fed07dbdc80313] Merge tag 'arm-soc-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit c011dd537ffe47462051930413fed07dbdc80313 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: e58dc030b9269041f839d190a7625948e5d8269e5859c44c8be9b0c3ac19a24d all runs: OK # git bisect good c011dd537ffe47462051930413fed07dbdc80313 Bisecting: 4244 revisions left to test after this (roughly 12 steps) [5d4af9c1f04ab0411ba5818baad9a68e87f33099] Merge branch 'mv88e6xxx-fixes-for-reading-serdes-state' testing commit 5d4af9c1f04ab0411ba5818baad9a68e87f33099 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 92d4bd22d0b9ca4d0899ce74f5f883d3c9c3612cd01ff7cbe027f7679ad44ef3 all runs: OK # git bisect good 5d4af9c1f04ab0411ba5818baad9a68e87f33099 Bisecting: 2122 revisions left to test after this (roughly 11 steps) [7a68065eb9cd194cf03f135c9211eeb2d5c4c0a0] Merge tag 'gpio-fixes-for-v5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux testing commit 7a68065eb9cd194cf03f135c9211eeb2d5c4c0a0 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 50a75689a165b7bba7ac4367eab6d3f556ad5abc39693b191714e6fe04ff476a all runs: OK # git bisect good 7a68065eb9cd194cf03f135c9211eeb2d5c4c0a0 Bisecting: 1057 revisions left to test after this (roughly 10 steps) [c1084b6c5620a743f86947caca66d90f24060f56] Merge tag 'soc-fixes-5.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit c1084b6c5620a743f86947caca66d90f24060f56 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fac71eebfc17d9c456a040be7e296745452561ff09fa09a0c12f2790c3901037 all runs: OK # git bisect good c1084b6c5620a743f86947caca66d90f24060f56 Bisecting: 528 revisions left to test after this (roughly 9 steps) [6305d821e3b9b5379d348528e5b5faf316383bc2] igmp: Fix a data-race around sysctl_igmp_max_memberships. testing commit 6305d821e3b9b5379d348528e5b5faf316383bc2 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 551d864ec6dc540b84502183c185b0f4f3de9d50251060c9706a55d1da8ffb2a all runs: OK # git bisect good 6305d821e3b9b5379d348528e5b5faf316383bc2 Bisecting: 249 revisions left to test after this (roughly 8 steps) [7ca433dc6dedb2ec98dfc943f6db0c9b8996ed11] Merge tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net testing commit 7ca433dc6dedb2ec98dfc943f6db0c9b8996ed11 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f81e40fc5d2bdc9d7b2c8644d15e9e246dccb73910352c34f2046bf611613af7 all runs: OK # git bisect good 7ca433dc6dedb2ec98dfc943f6db0c9b8996ed11 Bisecting: 141 revisions left to test after this (roughly 7 steps) [e64ab2dbd882933b65cd82ff6235d705ad65dbb6] watch_queue: Fix missing locking in add_watch_to_object() testing commit e64ab2dbd882933b65cd82ff6235d705ad65dbb6 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 7da5a67673a1bd59f113f97b456218de07cec7d2afd84ce6028c407065626e43 all runs: OK # git bisect good e64ab2dbd882933b65cd82ff6235d705ad65dbb6 Bisecting: 70 revisions left to test after this (roughly 6 steps) [51a83391d77bb0f7ff0aef06ca4c7f5aa9e80b4c] net/funeth: Fix fun_xdp_tx() and XDP packet reclaim testing commit 51a83391d77bb0f7ff0aef06ca4c7f5aa9e80b4c gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 619f79cef491bf9254abfd03643955b79109e7080f943be992e6118a75bc7432 all runs: OK # git bisect good 51a83391d77bb0f7ff0aef06ca4c7f5aa9e80b4c Bisecting: 37 revisions left to test after this (roughly 5 steps) [4b20426d044163df0ff9d868e9767ca9e65dd36c] Merge tag 'wq-for-5.19-rc8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq testing commit 4b20426d044163df0ff9d868e9767ca9e65dd36c gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: cd736b360b6c6e294d180be92a2ebb155db2a550e90709245ea4d65e9c66ab53 all runs: OK # git bisect good 4b20426d044163df0ff9d868e9767ca9e65dd36c Bisecting: 19 revisions left to test after this (roughly 4 steps) [8a91f86f3e9e9608210166c70aaad4919018c0e7] Merge tag 'block-5.19-2022-07-29' of git://git.kernel.dk/linux-block testing commit 8a91f86f3e9e9608210166c70aaad4919018c0e7 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: c7cda35c43b90150cf1b64f2568bfa98a5b5f6f03f88c5fcae690890c410377c run #0: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 8a91f86f3e9e9608210166c70aaad4919018c0e7 Bisecting: 6 revisions left to test after this (roughly 3 steps) [1c8ac1c4af178ebcdf6fd4a0ba11716e2c814593] Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi testing commit 1c8ac1c4af178ebcdf6fd4a0ba11716e2c814593 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 34ad9a0bcc82686b635f36b897d80d86b0ffdac2cf0ac2e303496e08fe859043 run #0: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: OK run #15: OK run #16: OK run #17: OK run #18: OK run #19: OK # git bisect bad 1c8ac1c4af178ebcdf6fd4a0ba11716e2c814593 Bisecting: 5 revisions left to test after this (roughly 3 steps) [9a241805673ec0a826b7ddf84b00f4e03adb0a5e] perf bpf: Remove undefined behavior from bpf_perf_object__next() testing commit 9a241805673ec0a826b7ddf84b00f4e03adb0a5e gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 7c8b913ebf7be17ad86ecf8d667ac6880e945a77bbf407e20ef1d2ab6c44d090 all runs: OK # git bisect good 9a241805673ec0a826b7ddf84b00f4e03adb0a5e Bisecting: 2 revisions left to test after this (roughly 2 steps) [d9a434fa0c12ed5f7afe1e9dd30003ab5d059b85] scsi: core: Fix warning in scsi_alloc_sgtables() testing commit d9a434fa0c12ed5f7afe1e9dd30003ab5d059b85 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 54a99f25c11d538d9849a0828c88229409768e4285a2bbe28612a48088b710b1 run #0: crashed: KASAN: out-of-bounds Write in end_buffer_read_sync run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: OK run #13: OK run #14: boot failed: INFO: task hung in hwrng_register run #15: boot failed: INFO: task hung in hwrng_register run #16: boot failed: INFO: task hung in hwrng_register run #17: boot failed: INFO: task hung in hwrng_register run #18: boot failed: INFO: task hung in hwrng_register run #19: boot failed: INFO: task hung in hwrng_register # git bisect bad d9a434fa0c12ed5f7afe1e9dd30003ab5d059b85 Bisecting: 0 revisions left to test after this (roughly 1 step) [a3435afba87dc6cd83f5595e7607f3c40f93ef01] scsi: ufs: host: Hold reference returned by of_parse_phandle() testing commit a3435afba87dc6cd83f5595e7607f3c40f93ef01 gcc compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ded16079d9e71378f637d38cecf1db2ce987a4759f098d37d8e2e68230a063f8 run #0: OK run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK run #10: OK run #11: OK run #12: boot failed: INFO: task hung in hwrng_register run #13: boot failed: INFO: task hung in hwrng_register run #14: boot failed: INFO: task hung in hwrng_register run #15: boot failed: INFO: task hung in hwrng_register run #16: boot failed: INFO: task hung in hwrng_register run #17: boot failed: INFO: task hung in hwrng_register run #18: boot failed: INFO: task hung in hwrng_register run #19: boot failed: INFO: task hung in hwrng_register # git bisect good a3435afba87dc6cd83f5595e7607f3c40f93ef01 d9a434fa0c12ed5f7afe1e9dd30003ab5d059b85 is the first bad commit commit d9a434fa0c12ed5f7afe1e9dd30003ab5d059b85 Author: Jason Yan Date: Wed Jul 20 10:51:20 2022 +0800 scsi: core: Fix warning in scsi_alloc_sgtables() As explained in SG_IO howto[1]: "If iovec_count is non-zero then 'dxfer_len' should be equal to the sum of iov_len lengths. If not, the minimum of the two is the transfer length." When iovec_count is non-zero and dxfer_len is zero, the sg_io() just genarated a null bio, and finally caused a warning below. To fix it, skip generating a bio for this request if dxfer_len is zero. [1] https://tldp.org/HOWTO/SCSI-Generic-HOWTO/x198.html WARNING: CPU: 2 PID: 3643 at drivers/scsi/scsi_lib.c:1032 scsi_alloc_sgtables+0xc7d/0xf70 drivers/scsi/scsi_lib.c:1032 Modules linked in: CPU: 2 PID: 3643 Comm: syz-executor397 Not tainted 5.17.0-rc3-syzkaller-00316-gb81b1829e7e3 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-204/01/2014 RIP: 0010:scsi_alloc_sgtables+0xc7d/0xf70 drivers/scsi/scsi_lib.c:1032 Code: e7 fc 31 ff 44 89 f6 e8 c1 4e e7 fc 45 85 f6 0f 84 1a f5 ff ff e8 93 4c e7 fc 83 c5 01 0f b7 ed e9 0f f5 ff ff e8 83 4c e7 fc <0f> 0b 41 bc 0a 00 00 00 e9 2b fb ff ff 41 bc 09 00 00 00 e9 20 fb RSP: 0018:ffffc90000d07558 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88801bfc96a0 RCX: 0000000000000000 RDX: ffff88801c876000 RSI: ffffffff849060bd RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff849055b9 R11: 0000000000000000 R12: ffff888012b8c000 R13: ffff88801bfc9580 R14: 0000000000000000 R15: ffff88801432c000 FS: 00007effdec8e700(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007effdec6d718 CR3: 00000000206d6000 CR4: 0000000000150ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: scsi_setup_scsi_cmnd drivers/scsi/scsi_lib.c:1219 [inline] scsi_prepare_cmd drivers/scsi/scsi_lib.c:1614 [inline] scsi_queue_rq+0x283e/0x3630 drivers/scsi/scsi_lib.c:1730 blk_mq_dispatch_rq_list+0x6ea/0x22e0 block/blk-mq.c:1851 __blk_mq_sched_dispatch_requests+0x20b/0x410 block/blk-mq-sched.c:299 blk_mq_sched_dispatch_requests+0xfb/0x180 block/blk-mq-sched.c:332 __blk_mq_run_hw_queue+0xf9/0x350 block/blk-mq.c:1968 __blk_mq_delay_run_hw_queue+0x5b6/0x6c0 block/blk-mq.c:2045 blk_mq_run_hw_queue+0x30f/0x480 block/blk-mq.c:2096 blk_mq_sched_insert_request+0x340/0x440 block/blk-mq-sched.c:451 blk_execute_rq+0xcc/0x340 block/blk-mq.c:1231 sg_io+0x67c/0x1210 drivers/scsi/scsi_ioctl.c:485 scsi_ioctl_sg_io drivers/scsi/scsi_ioctl.c:866 [inline] scsi_ioctl+0xa66/0x1560 drivers/scsi/scsi_ioctl.c:921 sd_ioctl+0x199/0x2a0 drivers/scsi/sd.c:1576 blkdev_ioctl+0x37a/0x800 block/ioctl.c:588 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7effdecdc5d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 14 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007effdec8e2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007effded664c0 RCX: 00007effdecdc5d9 RDX: 0000000020002300 RSI: 0000000000002285 RDI: 0000000000000004 RBP: 00007effded34034 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00007effded34054 R14: 2f30656c69662f2e R15: 00007effded664c8 Link: https://lore.kernel.org/r/20220720025120.3226770-1-yanaijie@huawei.com Fixes: 25636e282fe9 ("block: fix SG_IO vector request data length handling") Reported-by: syzbot+d44b35ecfb807e5af0b5@syzkaller.appspotmail.com Reviewed-by: Christoph Hellwig Reviewed-by: Bart Van Assche Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen drivers/scsi/scsi_ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) culprit signature: 54a99f25c11d538d9849a0828c88229409768e4285a2bbe28612a48088b710b1 parent signature: ded16079d9e71378f637d38cecf1db2ce987a4759f098d37d8e2e68230a063f8 Reproducer flagged being flaky revisions tested: 19, total time: 6h54m43.424306896s (build: 4h2m50.494254109s, test: 2h41m42.306197741s) first bad commit: d9a434fa0c12ed5f7afe1e9dd30003ab5d059b85 scsi: core: Fix warning in scsi_alloc_sgtables() recipients (to): ["bvanassche@acm.org" "hch@lst.de" "martin.petersen@oracle.com" "yanaijie@huawei.com"] recipients (cc): [] crash: KASAN: out-of-bounds Write in end_buffer_read_sync ================================================================== BUG: KASAN: out-of-bounds in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: out-of-bounds in atomic_dec include/linux/atomic/atomic-instrumented.h:257 [inline] BUG: KASAN: out-of-bounds in put_bh include/linux/buffer_head.h:284 [inline] BUG: KASAN: out-of-bounds in end_buffer_read_sync+0x85/0x90 fs/buffer.c:160 Write of size 4 at addr ffffc900027fe660 by task ksoftirqd/1/22 CPU: 1 PID: 22 Comm: ksoftirqd/1 Not tainted 5.19.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x12a/0x1be lib/dump_stack.c:106 print_address_description+0x65/0x4b0 mm/kasan/report.c:313 print_report+0xf4/0x1e0 mm/kasan/report.c:429 kasan_report+0xc3/0xf0 mm/kasan/report.c:491 kasan_check_range+0x2a7/0x2e0 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_dec include/linux/atomic/atomic-instrumented.h:257 [inline] put_bh include/linux/buffer_head.h:284 [inline] end_buffer_read_sync+0x85/0x90 fs/buffer.c:160 end_bio_bh_io_sync+0x87/0xd0 fs/buffer.c:2993 req_bio_endio block/blk-mq.c:687 [inline] blk_update_request+0x3c4/0x1040 block/blk-mq.c:816 blk_mq_end_request+0x34/0x60 block/blk-mq.c:942 blk_complete_reqs block/blk-mq.c:1013 [inline] blk_done_softirq+0x95/0x140 block/blk-mq.c:1018 __do_softirq+0x362/0x773 kernel/softirq.c:571 run_ksoftirqd+0xa2/0x100 kernel/softirq.c:934 smpboot_thread_fn+0x523/0x880 kernel/smpboot.c:164 kthread+0x228/0x2a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 The buggy address belongs to the virtual mapping at [ffffc900027f8000, ffffc90002801000) created by: dup_task_struct+0x55/0x440 kernel/fork.c:977 The buggy address belongs to the physical page: page:ffffea00005f8e40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17e39 memcg:ffff88801bf76502 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff ffff88801bf76502 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x102dc2(GFP_HIGHUSER|__GFP_NOWARN|__GFP_ZERO), pid 4074, tgid 4074 (syz-executor.0), ts 362073228118, free_ts 362056480099 prep_new_page mm/page_alloc.c:2456 [inline] get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4198 __alloc_pages+0x259/0x560 mm/page_alloc.c:5426 vm_area_alloc_pages mm/vmalloc.c:2927 [inline] __vmalloc_area_node mm/vmalloc.c:2995 [inline] __vmalloc_node_range+0x66f/0xfc0 mm/vmalloc.c:3165 alloc_thread_stack_node+0x27f/0x410 kernel/fork.c:312 dup_task_struct+0x55/0x440 kernel/fork.c:977 copy_process+0x3e1/0x3a40 kernel/fork.c:2071 kernel_clone+0x16e/0x610 kernel/fork.c:2655 __do_sys_clone kernel/fork.c:2789 [inline] __se_sys_clone kernel/fork.c:2773 [inline] __x64_sys_clone+0x223/0x280 kernel/fork.c:2773 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1371 [inline] free_pcp_prepare+0x812/0x900 mm/page_alloc.c:1421 free_unref_page_prepare mm/page_alloc.c:3343 [inline] free_unref_page_list+0x12c/0x830 mm/page_alloc.c:3475 release_pages+0x1cfc/0x1ed0 mm/swap.c:980 __pagevec_release+0x5f/0xd0 mm/swap.c:1000 pagevec_release include/linux/pagevec.h:82 [inline] folio_batch_release include/linux/pagevec.h:146 [inline] truncate_inode_pages_range+0x405/0x1180 mm/truncate.c:373 kill_bdev block/bdev.c:77 [inline] blkdev_flush_mapping+0x17d/0x2e0 block/bdev.c:663 blkdev_put_whole block/bdev.c:694 [inline] blkdev_put+0x3ca/0x5c0 block/bdev.c:954 deactivate_locked_super+0x82/0xd0 fs/super.c:332 cleanup_mnt+0x3dc/0x480 fs/namespace.c:1186 task_work_run+0xd6/0x160 kernel/task_work.c:177 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:169 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:294 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Memory state around the buggy address: ffffc900027fe500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc900027fe580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffc900027fe600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffffc900027fe680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc900027fe700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================