Warning: Permanently added '10.128.10.57' (ED25519) to the list of known hosts. 2023/07/29 11:40:19 ignoring optional flag "sandboxArg"="0" 2023/07/29 11:40:19 parsed 1 programs [ 42.040556][ T27] audit: type=1400 audit(1690630819.269:156): avc: denied { mounton } for pid=352 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 42.065336][ T27] audit: type=1400 audit(1690630819.269:157): avc: denied { mount } for pid=352 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 2023/07/29 11:40:19 executed programs: 0 [ 42.111977][ T27] audit: type=1400 audit(1690630819.349:158): avc: denied { unlink } for pid=352 comm="syz-executor" name="swap-file" dev="sda1" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" [ 42.149647][ T352] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 42.186574][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.193438][ T358] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.200497][ T358] device bridge_slave_0 entered promiscuous mode [ 42.207272][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.214434][ T358] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.221700][ T358] device bridge_slave_1 entered promiscuous mode [ 42.250672][ T27] audit: type=1400 audit(1690630819.479:159): avc: denied { write } for pid=358 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 42.254658][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.271259][ T27] audit: type=1400 audit(1690630819.479:160): avc: denied { read } for pid=358 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 42.277994][ T358] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.305296][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.312242][ T358] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.327230][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.334492][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.342112][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 42.349259][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 42.357579][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 42.365578][ T36] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.372861][ T36] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.381687][ T36] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 42.389557][ T36] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.396368][ T36] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.410412][ T358] device veth0_vlan entered promiscuous mode [ 42.417026][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 42.425229][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 42.432961][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 42.440542][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 42.447863][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 42.455969][ T315] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 42.466711][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 42.475169][ T358] device veth1_macvtap entered promiscuous mode [ 42.483243][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 42.496340][ T27] audit: type=1400 audit(1690630819.729:161): avc: denied { mounton } for pid=358 comm="syz-executor.0" path="/dev/binderfs" dev="devtmpfs" ino=207 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:device_t tclass=dir permissive=1 [ 42.497415][ T56] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 42.534931][ T363] loop0: detected capacity change from 0 to 512 [ 42.541803][ T27] audit: type=1400 audit(1690630819.779:162): avc: denied { mounton } for pid=362 comm="syz-executor.0" path="/root/syzkaller-testdir2958320947/syzkaller.GlMu7i/0/file1" dev="sda1" ino=1938 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 42.582996][ T363] EXT4-fs (loop0): 1 orphan inode deleted [ 42.588617][ T363] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 42.597588][ T363] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/0/file1 supports timestamps until 2038 (0x7fffffff) [ 42.597591][ T27] audit: type=1400 audit(1690630819.829:163): avc: denied { mount } for pid=362 comm="syz-executor.0" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 42.633812][ T27] audit: type=1400 audit(1690630819.869:164): avc: denied { write } for pid=362 comm="syz-executor.0" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 42.655962][ T27] audit: type=1400 audit(1690630819.869:165): avc: denied { add_name } for pid=362 comm="syz-executor.0" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 42.677477][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 42.691096][ T10] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 42.700426][ T10] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:1: mark_inode_dirty error [ 42.711889][ T10] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 42.724493][ T10] EXT4-fs (loop0): This should not happen!! Data will be lost [ 42.724493][ T10] [ 42.734193][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 42.748756][ T358] EXT4-fs (loop0): unmounting filesystem. [ 42.778943][ T371] loop0: detected capacity change from 0 to 512 [ 42.792502][ T371] EXT4-fs (loop0): 1 orphan inode deleted [ 42.798073][ T371] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 42.806880][ T371] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/1/file1 supports timestamps until 2038 (0x7fffffff) [ 42.829357][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 42.842820][ T10] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 42.852323][ T10] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:1: mark_inode_dirty error [ 42.863712][ T10] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 42.875905][ T10] EXT4-fs (loop0): This should not happen!! Data will be lost [ 42.875905][ T10] [ 42.885613][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 42.900096][ T358] EXT4-fs (loop0): unmounting filesystem. [ 42.920561][ T375] loop0: detected capacity change from 0 to 512 [ 42.932261][ T375] EXT4-fs (loop0): 1 orphan inode deleted [ 42.937783][ T375] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 42.946621][ T375] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/2/file1 supports timestamps until 2038 (0x7fffffff) [ 42.970587][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 42.984055][ T10] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 42.993402][ T10] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:1: mark_inode_dirty error [ 43.004776][ T10] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 43.016933][ T10] EXT4-fs (loop0): This should not happen!! Data will be lost [ 43.016933][ T10] [ 43.026711][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 43.041307][ T358] EXT4-fs (loop0): unmounting filesystem. [ 43.058496][ T379] loop0: detected capacity change from 0 to 512 [ 43.072456][ T379] EXT4-fs (loop0): 1 orphan inode deleted [ 43.077984][ T379] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 43.086877][ T379] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/3/file1 supports timestamps until 2038 (0x7fffffff) [ 43.108995][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 43.122630][ T10] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 43.131995][ T10] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:1: mark_inode_dirty error [ 43.143352][ T10] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 43.155624][ T10] EXT4-fs (loop0): This should not happen!! Data will be lost [ 43.155624][ T10] [ 43.165237][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 43.180168][ T358] EXT4-fs (loop0): unmounting filesystem. [ 43.222545][ T383] loop0: detected capacity change from 0 to 512 [ 43.232529][ T383] EXT4-fs (loop0): 1 orphan inode deleted [ 43.238175][ T383] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 43.247095][ T383] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/4/file1 supports timestamps until 2038 (0x7fffffff) [ 43.270271][ T41] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:2: Invalid inode table block 790638693 in block_group 0 [ 43.283940][ T41] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 43.293511][ T41] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:2: mark_inode_dirty error [ 43.304883][ T41] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 43.317180][ T41] EXT4-fs (loop0): This should not happen!! Data will be lost [ 43.317180][ T41] [ 43.326901][ T41] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:2: Invalid inode table block 790638693 in block_group 0 [ 43.341505][ T358] EXT4-fs (loop0): unmounting filesystem. [ 43.353405][ T387] loop0: detected capacity change from 0 to 512 [ 43.362842][ T387] EXT4-fs (loop0): 1 orphan inode deleted [ 43.368384][ T387] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 43.377245][ T387] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/5/file1 supports timestamps until 2038 (0x7fffffff) [ 43.403450][ T41] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:2: Invalid inode table block 790638693 in block_group 0 [ 43.416946][ T41] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 43.426572][ T41] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:2: mark_inode_dirty error [ 43.438215][ T41] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 43.450533][ T41] EXT4-fs (loop0): This should not happen!! Data will be lost [ 43.450533][ T41] [ 43.460145][ T41] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:2: Invalid inode table block 790638693 in block_group 0 [ 43.474593][ T358] EXT4-fs (loop0): unmounting filesystem. [ 43.495581][ T391] loop0: detected capacity change from 0 to 512 [ 43.512171][ T391] EXT4-fs (loop0): 1 orphan inode deleted [ 43.517936][ T391] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 43.527905][ T391] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/6/file1 supports timestamps until 2038 (0x7fffffff) [ 43.551097][ T41] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:2: Invalid inode table block 790638693 in block_group 0 [ 43.564516][ T41] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 43.573890][ T41] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:2: mark_inode_dirty error [ 43.585811][ T41] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 43.598312][ T41] EXT4-fs (loop0): This should not happen!! Data will be lost [ 43.598312][ T41] [ 43.608032][ T41] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:2: Invalid inode table block 790638693 in block_group 0 [ 43.622490][ T358] EXT4-fs (loop0): unmounting filesystem. [ 43.637194][ T395] loop0: detected capacity change from 0 to 512 [ 43.652193][ T395] EXT4-fs (loop0): 1 orphan inode deleted [ 43.657813][ T395] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 43.666997][ T395] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/7/file1 supports timestamps until 2038 (0x7fffffff) [ 43.692369][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 43.705954][ T10] EXT4-fs error (device loop0) in ext4_reserve_inode_write:5841: Corrupt filesystem [ 43.715428][ T10] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm kworker/u4:1: mark_inode_dirty error [ 43.727071][ T10] EXT4-fs (loop0): Delayed block allocation failed for inode 16 at logical offset 0 with max blocks 16 with error 117 [ 43.739488][ T10] EXT4-fs (loop0): This should not happen!! Data will be lost [ 43.739488][ T10] [ 43.749429][ T10] EXT4-fs error (device loop0): __ext4_get_inode_loc:4492: comm kworker/u4:1: Invalid inode table block 790638693 in block_group 0 [ 43.764283][ T358] EXT4-fs (loop0): unmounting filesystem. [ 43.778747][ T401] loop0: detected capacity change from 0 to 512 [ 43.792571][ T401] EXT4-fs (loop0): 1 orphan inode deleted [ 43.798137][ T401] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. [ 43.807025][ T401] ext4 filesystem being mounted at /root/syzkaller-testdir2958320947/syzkaller.GlMu7i/8/file1 supports timestamps until 2038 (0x7fffffff) [ 43.833059][ T368] ================================================================== [ 43.841012][ T368] BUG: KASAN: use-after-free in ext4_find_extent+0xb60/0xd10 [ 43.848389][ T368] Read of size 4 at addr ffff8881241ef4cc by task kworker/u4:3/368 [ 43.856232][ T368] [ 43.858373][ T368] CPU: 0 PID: 368 Comm: kworker/u4:3 Not tainted 6.1.25-syzkaller #0 [ 43.866456][ T368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 43.876345][ T368] Workqueue: writeback wb_workfn (flush-7:0) [ 43.882159][ T368] Call Trace: [ 43.885290][ T368] [ 43.888070][ T368] dump_stack_lvl+0x105/0x148 [ 43.892664][ T368] ? panic+0x3b4/0x3b4 [ 43.896565][ T368] ? nf_tcp_handle_invalid+0x30b/0x30b [ 43.901953][ T368] ? _printk+0xca/0x10a [ 43.906030][ T368] print_report+0x158/0x4e0 [ 43.910378][ T368] ? kasan_addr_to_slab+0xd/0x80 [ 43.915230][ T368] ? ext4_find_extent+0xb60/0xd10 [ 43.920101][ T368] kasan_report+0x13c/0x170 [ 43.924428][ T368] ? ext4_find_extent+0xb60/0xd10 [ 43.929297][ T368] __asan_report_load4_noabort+0x14/0x20 [ 43.934760][ T368] ext4_find_extent+0xb60/0xd10 [ 43.939458][ T368] ext4_ext_map_blocks+0x25d/0x64d0 [ 43.944651][ T368] ? stack_trace_save+0x113/0x1c0 [ 43.949539][ T368] ? uncharge_batch+0x4e0/0x4e0 [ 43.954460][ T368] ? stack_trace_snprint+0xe0/0xe0 [ 43.959406][ T368] ? __stack_depot_save+0x21/0x480 [ 43.964359][ T368] ? kasan_set_track+0x60/0x70 [ 43.968966][ T368] ? kasan_set_track+0x4b/0x70 [ 43.973652][ T368] ? kasan_save_alloc_info+0x1f/0x30 [ 43.978771][ T368] ? __kasan_slab_alloc+0x6c/0x80 [ 43.983632][ T368] ? ext4_ext_release+0x10/0x10 [ 43.988403][ T368] ? __kasan_check_write+0x14/0x20 [ 43.993365][ T368] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 43.998649][ T368] ? process_one_work+0x6de/0xd00 [ 44.003600][ T368] ? worker_thread+0x892/0xf20 [ 44.008278][ T368] ? kthread+0x215/0x270 [ 44.012363][ T368] ? _raw_spin_lock+0x1b0/0x1b0 [ 44.017047][ T368] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 44.022687][ T368] ? ext4_es_lookup_extent+0x278/0x730 [ 44.027981][ T368] ext4_map_blocks+0x83a/0x18b0 [ 44.032761][ T368] ? ext4_issue_zeroout+0x170/0x170 [ 44.037789][ T368] ext4_writepages+0x1425/0x31d0 [ 44.042563][ T368] ? check_preempt_wakeup+0x7c1/0xb20 [ 44.047769][ T368] ? ext4_read_folio+0x180/0x180 [ 44.052544][ T368] ? yield_to_task_fair+0x190/0x190 [ 44.057578][ T368] ? enqueue_task+0x110/0x490 [ 44.062100][ T368] ? check_preempt_curr+0xdb/0x1c0 [ 44.067043][ T368] ? _raw_spin_unlock+0x4c/0x70 [ 44.071726][ T368] do_writepages+0x338/0x5b0 [ 44.076178][ T368] ? __writepage+0xf0/0xf0 [ 44.080409][ T368] ? update_load_avg+0x54a/0x14c0 [ 44.085378][ T368] ? update_curr+0x2e7/0x6f0 [ 44.089904][ T368] ? __kasan_check_write+0x14/0x20 [ 44.094866][ T368] ? _raw_spin_lock+0xa4/0x1b0 [ 44.099785][ T368] __writeback_single_inode+0x73/0x7a0 [ 44.105077][ T368] ? inode_io_list_move_locked+0x204/0x3c0 [ 44.110977][ T368] writeback_sb_inodes+0x881/0x1500 [ 44.116014][ T368] ? _raw_spin_lock+0xa4/0x1b0 [ 44.120624][ T368] ? queue_io+0x410/0x410 [ 44.124790][ T368] ? __writeback_inodes_wb+0x330/0x330 [ 44.130073][ T368] ? queue_io+0x28a/0x410 [ 44.134238][ T368] ? memset+0x35/0x40 [ 44.138068][ T368] ? blk_start_plug+0x8c/0x120 [ 44.142762][ T368] wb_writeback+0x357/0x810 [ 44.147377][ T368] ? inode_cgwb_move_to_attached+0x480/0x480 [ 44.153199][ T368] ? set_worker_desc+0x11c/0x180 [ 44.157961][ T368] ? __kasan_check_write+0x14/0x20 [ 44.162926][ T368] wb_workfn+0x37d/0xdf0 [ 44.166997][ T368] ? inode_wait_for_writeback+0x260/0x260 [ 44.172553][ T368] ? _raw_spin_unlock+0x4c/0x70 [ 44.177331][ T368] ? finish_task_switch+0x14b/0x680 [ 44.182545][ T368] ? __kasan_check_read+0x11/0x20 [ 44.187474][ T368] ? read_word_at_a_time+0x12/0x20 [ 44.192512][ T368] ? strscpy+0x99/0x260 [ 44.196501][ T368] process_one_work+0x6de/0xd00 [ 44.201199][ T368] worker_thread+0x892/0xf20 [ 44.205627][ T368] ? process_one_work+0xd00/0xd00 [ 44.210472][ T368] kthread+0x215/0x270 [ 44.214467][ T368] ? process_one_work+0xd00/0xd00 [ 44.219325][ T368] ? kthread_blkcg+0xa0/0xa0 [ 44.223766][ T368] ret_from_fork+0x1f/0x30 [ 44.228014][ T368] [ 44.230886][ T368] [ 44.233050][ T368] The buggy address belongs to the physical page: [ 44.239302][ T368] page:ffffea0004907bc0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x1241ef [ 44.249448][ T368] flags: 0x4000000000000000(zone=1) [ 44.254572][ T368] raw: 4000000000000000 ffffea0004908cc8 ffffea0004907c88 0000000000000000 [ 44.263070][ T368] raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 [ 44.271494][ T368] page dumped because: kasan: bad access detected [ 44.277753][ T368] page_owner tracks the page as freed [ 44.282971][ T368] page last allocated via order 0, migratetype Movable, gfp_mask 0x8140dca(GFP_HIGHUSER_MOVABLE|__GFP_COMP|__GFP_ZERO|0x8000000), pid 374, tgid 374 (syz-executor.0), ts 42916164401, free_ts 42966990581 [ 44.302561][ T368] prep_new_page+0x50b/0x530 [ 44.306986][ T368] get_page_from_freelist+0x273d/0x27d0 [ 44.312366][ T368] __alloc_pages+0x39f/0x780 [ 44.316793][ T368] __folio_alloc+0x15/0x40 [ 44.321047][ T368] handle_mm_fault+0x188f/0x2200 [ 44.325820][ T368] exc_page_fault+0x243/0x6d0 [ 44.330343][ T368] asm_exc_page_fault+0x27/0x30 [ 44.335018][ T368] page last free stack trace: [ 44.339540][ T368] free_unref_page_prepare+0x794/0x7a0 [ 44.344826][ T368] free_unref_page_list+0xf6/0x690 [ 44.349774][ T368] release_pages+0xcfc/0xd50 [ 44.354287][ T368] free_pages_and_swap_cache+0x68/0x80 [ 44.359593][ T368] tlb_flush_mmu+0xe9/0x1b0 [ 44.363921][ T368] unmap_page_range+0x7d4/0x18e0 [ 44.368781][ T368] unmap_vmas+0x461/0x590 [ 44.372954][ T368] exit_mmap+0x25c/0x730 [ 44.377026][ T368] __mmput+0x6b/0x2a0 [ 44.380855][ T368] mmput+0x2a/0xe0 [ 44.384403][ T368] do_exit+0x93e/0x23b0 [ 44.388482][ T368] do_group_exit+0x1ba/0x290 [ 44.392908][ T368] get_signal+0xf0b/0x1000 [ 44.397164][ T368] arch_do_signal_or_restart+0xb0/0x16f0 [ 44.402630][ T368] exit_to_user_mode_loop+0x6b/0xa0 [ 44.407664][ T368] exit_to_user_mode_prepare+0x5a/0xa0 [ 44.413048][ T368] [ 44.415216][ T368] Memory state around the buggy address: [ 44.420693][ T368] ffff8881241ef380: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 44.428591][ T368] ffff8881241ef400: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 44.436652][ T368] >ffff8881241ef480: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 44.444550][ T368] ^ [ 44.450888][ T368] ffff8881241ef500: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 44.458787][ T368] ffff8881241ef580: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 44.466780][ T368] ================================================================== [ 44.475961][ T368] Disabling lock debugging due to kernel taint [ 44.482109][ T368] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 44.487992][ T368] CPU: 1 PID: 368 Comm: kworker/u4:3 Tainted: G B 6.1.25-syzkaller #0 [ 44.497459][ T368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 [ 44.507431][ T368] Workqueue: writeback wb_workfn (flush-7:0) [ 44.513528][ T368] RIP: 0010:ext4_writepages+0x31cc/0x31d0 [ 44.519170][ T368] Code: 00 65 ff 0d de 09 32 7e 49 bf 00 00 00 00 00 fc ff df 4c 8b ac 24 a8 00 00 00 0f 85 6a fb ff ff e8 61 01 30 ff e9 60 fb ff ff <0f> 0b 0f 0b 55 48 89 e5 41 56 53 48 89 f3 49 89 fe 48 89 f7 be 08 [ 44.538963][ T368] RSP: 0018:ffffc90000e07060 EFLAGS: 00010246 [ 44.544950][ T368] RAX: 0000000000000000 RBX: ffffc90000e07320 RCX: 0000000000000001 [ 44.552956][ T368] RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001 [ 44.560755][ T368] RBP: ffffc90000e07450 R08: dffffc0000000000 R09: ffffed10200af470 [ 44.568743][ T368] R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000042b [ 44.576554][ T368] R13: dffffc0000000000 R14: ffff88810057a3b8 R15: 0000000000000000 [ 44.584367][ T368] FS: 0000000000000000(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 44.593307][ T368] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.599726][ T368] CR2: 000055555632b818 CR3: 000000000540f000 CR4: 00000000003506a0 [ 44.607629][ T368] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.615872][ T368] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.623684][ T368] Call Trace: [ 44.626810][ T368] [ 44.629588][ T368] ? check_preempt_wakeup+0x7c1/0xb20 [ 44.634804][ T368] ? ext4_read_folio+0x180/0x180 [ 44.639575][ T368] ? yield_to_task_fair+0x190/0x190 [ 44.644914][ T368] ? enqueue_task+0x110/0x490 [ 44.649382][ T368] ? check_preempt_curr+0xdb/0x1c0 [ 44.654324][ T368] ? _raw_spin_unlock+0x4c/0x70 [ 44.659011][ T368] do_writepages+0x338/0x5b0 [ 44.663624][ T368] ? __writepage+0xf0/0xf0 [ 44.667880][ T368] ? update_load_avg+0x54a/0x14c0 [ 44.672721][ T368] ? update_curr+0x2e7/0x6f0 [ 44.677148][ T368] ? __kasan_check_write+0x14/0x20 [ 44.682096][ T368] ? _raw_spin_lock+0xa4/0x1b0 [ 44.686726][ T368] __writeback_single_inode+0x73/0x7a0 [ 44.692000][ T368] ? inode_io_list_move_locked+0x204/0x3c0 [ 44.697639][ T368] writeback_sb_inodes+0x881/0x1500 [ 44.702744][ T368] ? _raw_spin_lock+0xa4/0x1b0 [ 44.707267][ T368] ? queue_io+0x410/0x410 [ 44.711444][ T368] ? __writeback_inodes_wb+0x330/0x330 [ 44.716820][ T368] ? queue_io+0x28a/0x410 [ 44.720979][ T368] ? memset+0x35/0x40 [ 44.724811][ T368] ? blk_start_plug+0x8c/0x120 [ 44.729399][ T368] wb_writeback+0x357/0x810 [ 44.733830][ T368] ? inode_cgwb_move_to_attached+0x480/0x480 [ 44.739817][ T368] ? set_worker_desc+0x11c/0x180 [ 44.744588][ T368] ? __kasan_check_write+0x14/0x20 [ 44.749535][ T368] wb_workfn+0x37d/0xdf0 [ 44.753730][ T368] ? inode_wait_for_writeback+0x260/0x260 [ 44.759254][ T368] ? _raw_spin_unlock+0x4c/0x70 [ 44.763942][ T368] ? finish_task_switch+0x14b/0x680 [ 44.768978][ T368] ? __kasan_check_read+0x11/0x20 [ 44.773837][ T368] ? read_word_at_a_time+0x12/0x20 [ 44.778780][ T368] ? strscpy+0x99/0x260 [ 44.782776][ T368] process_one_work+0x6de/0xd00 [ 44.787461][ T368] worker_thread+0x892/0xf20 [ 44.791889][ T368] ? process_one_work+0xd00/0xd00 [ 44.796753][ T368] kthread+0x215/0x270 [ 44.800661][ T368] ? process_one_work+0xd00/0xd00 [ 44.805530][ T368] ? kthread_blkcg+0xa0/0xa0 [ 44.809945][ T368] ret_from_fork+0x1f/0x30 [ 44.814195][ T368] [ 44.817078][ T368] Modules linked in: [ 44.820947][ T368] ---[ end trace 0000000000000000 ]--- [ 44.826484][ T368] RIP: 0010:ext4_writepages+0x31cc/0x31d0 [ 44.832018][ T368] Code: 00 65 ff 0d de 09 32 7e 49 bf 00 00 00 00 00 fc ff df 4c 8b ac 24 a8 00 00 00 0f 85 6a fb ff ff e8 61 01 30 ff e9 60 fb ff ff <0f> 0b 0f 0b 55 48 89 e5 41 56 53 48 89 f3 49 89 fe 48 89 f7 be 08 [ 44.851465][ T368] RSP: 0018:ffffc90000e07060 EFLAGS: 00010246 [ 44.857337][ T368] RAX: 0000000000000000 RBX: ffffc90000e07320 RCX: 0000000000000001 [ 44.865198][ T368] RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000001 [ 44.873203][ T368] RBP: ffffc90000e07450 R08: dffffc0000000000 R09: ffffed10200af470 [ 44.880953][ T368] R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000042b [ 44.888917][ T368] R13: dffffc0000000000 R14: ffff88810057a3b8 R15: 0000000000000000 [ 44.896728][ T368] FS: 0000000000000000(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 44.905462][ T368] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.911908][ T368] CR2: 0000000020042000 CR3: 00000001244ba000 CR4: 00000000003506b0 [ 44.919686][ T368] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.927531][ T368] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.935344][ T368] Kernel panic - not syncing: Fatal exception [ 44.941394][ T368] Kernel Offset: disabled [ 44.945505][ T368] Rebooting in 86400 seconds..