[syzbot] [erofs?] BUG: using smp_processor_id() in preemptible code in z_erofs_get_gbuf
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syzbot
Apr 8, 2024, 2:23:40 PMApr 8
to ch...@kernel.org, dha...@google.com, huy...@coolpad.com, jeff...@linux.alibaba.com, linux...@lists.ozlabs.org, linux-...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com, xi...@kernel.org
Hello,
syzbot found the following issue on:
HEAD commit: 2b3d5988ae2c Add linux-next specific files for 20240404
git tree: linux-next
console+strace: https://syzkaller.appspot.com/x/log.txt?x=150f9d29180000
kernel config: https://syzkaller.appspot.com/x/.config?x=9c48fd2523cdee5e
dashboard link: https://syzkaller.appspot.com/bug?extid=27cc650ef45b379dfe5a
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a60955180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d08115180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/136270ed2c7b/disk-2b3d5988.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/466d2f7c1952/vmlinux-2b3d5988.xz
kernel image: https://storage.googleapis.com/syzbot-assets/7dfaf3959891/bzImage-2b3d5988.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/2026b83172a2/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+27cc65...@syzkaller.appspotmail.com
BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u9:1/4483
caller is z_erofs_gbuf_id fs/erofs/zutil.c:31 [inline]
caller is z_erofs_get_gbuf+0x2c/0xd0 fs/erofs/zutil.c:39
CPU: 0 PID: 4483 Comm: kworker/u9:1 Not tainted 6.9.0-rc2-next-20240404-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: erofs_worker z_erofs_decompressqueue_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
z_erofs_gbuf_id fs/erofs/zutil.c:31 [inline]
z_erofs_get_gbuf+0x2c/0xd0 fs/erofs/zutil.c:39
z_erofs_lz4_handle_overlap fs/erofs/decompressor.c:162 [inline]
z_erofs_lz4_decompress_mem fs/erofs/decompressor.c:234 [inline]
z_erofs_lz4_decompress+0xe42/0x17b0 fs/erofs/decompressor.c:307
z_erofs_decompress_pcluster fs/erofs/zdata.c:1260 [inline]
z_erofs_decompress_queue+0x1e30/0x3960 fs/erofs/zdata.c:1345
z_erofs_decompressqueue_work+0x99/0xe0 fs/erofs/zdata.c:1360
process_one_work kernel/workqueue.c:3218 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
---
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 syzk...@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 syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
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
syzbot found the following issue on:
HEAD commit: 2b3d5988ae2c Add linux-next specific files for 20240404
git tree: linux-next
console+strace: https://syzkaller.appspot.com/x/log.txt?x=150f9d29180000
kernel config: https://syzkaller.appspot.com/x/.config?x=9c48fd2523cdee5e
dashboard link: https://syzkaller.appspot.com/bug?extid=27cc650ef45b379dfe5a
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10a60955180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d08115180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/136270ed2c7b/disk-2b3d5988.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/466d2f7c1952/vmlinux-2b3d5988.xz
kernel image: https://storage.googleapis.com/syzbot-assets/7dfaf3959891/bzImage-2b3d5988.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/2026b83172a2/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+27cc65...@syzkaller.appspotmail.com
BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u9:1/4483
caller is z_erofs_gbuf_id fs/erofs/zutil.c:31 [inline]
caller is z_erofs_get_gbuf+0x2c/0xd0 fs/erofs/zutil.c:39
CPU: 0 PID: 4483 Comm: kworker/u9:1 Not tainted 6.9.0-rc2-next-20240404-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: erofs_worker z_erofs_decompressqueue_work
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49
z_erofs_gbuf_id fs/erofs/zutil.c:31 [inline]
z_erofs_get_gbuf+0x2c/0xd0 fs/erofs/zutil.c:39
z_erofs_lz4_handle_overlap fs/erofs/decompressor.c:162 [inline]
z_erofs_lz4_decompress_mem fs/erofs/decompressor.c:234 [inline]
z_erofs_lz4_decompress+0xe42/0x17b0 fs/erofs/decompressor.c:307
z_erofs_decompress_pcluster fs/erofs/zdata.c:1260 [inline]
z_erofs_decompress_queue+0x1e30/0x3960 fs/erofs/zdata.c:1345
z_erofs_decompressqueue_work+0x99/0xe0 fs/erofs/zdata.c:1360
process_one_work kernel/workqueue.c:3218 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
---
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 syzk...@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 syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
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
Edward Adam Davis
Apr 8, 2024, 9:16:32 PMApr 8
to syzbot+27cc65...@syzkaller.appspotmail.com, linux-...@vger.kernel.org, syzkall...@googlegroups.com
please test wrong context using smp_processor_id
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 2b3d5988ae2c
diff --git a/fs/erofs/zutil.c b/fs/erofs/zutil.c
index 9687cad8be96..0a3d9eecbf16 100644
--- a/fs/erofs/zutil.c
+++ b/fs/erofs/zutil.c
@@ -35,8 +35,11 @@ void *z_erofs_get_gbuf(unsigned int requiredpages)
__acquires(gbuf->lock)
{
struct z_erofs_gbuf *gbuf;
+ unsigned long flags;
+ local_irq_save(flags);
gbuf = &z_erofs_gbufpool[z_erofs_gbuf_id()];
+ local_irq_restore(flags);
spin_lock(&gbuf->lock);
/* check if the buffer is too small */
if (requiredpages > gbuf->nrpages) {
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 2b3d5988ae2c
diff --git a/fs/erofs/zutil.c b/fs/erofs/zutil.c
index 9687cad8be96..0a3d9eecbf16 100644
--- a/fs/erofs/zutil.c
+++ b/fs/erofs/zutil.c
@@ -35,8 +35,11 @@ void *z_erofs_get_gbuf(unsigned int requiredpages)
__acquires(gbuf->lock)
{
struct z_erofs_gbuf *gbuf;
+ unsigned long flags;
+ local_irq_save(flags);
gbuf = &z_erofs_gbufpool[z_erofs_gbuf_id()];
+ local_irq_restore(flags);
spin_lock(&gbuf->lock);
/* check if the buffer is too small */
if (requiredpages > gbuf->nrpages) {
Gao Xiang
Apr 8, 2024, 9:48:05 PMApr 8
to syzbot, ch...@kernel.org, dha...@google.com, huy...@coolpad.com, jeff...@linux.alibaba.com, linux...@lists.ozlabs.org, linux-...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com, xi...@kernel.org
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev
syzbot
Apr 9, 2024, 8:36:04 PMApr 9
to ead...@qq.com, linux-...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzbot has tested the proposed patch and the reproducer did not trigger any issue:
Reported-and-tested-by: syzbot+27cc65...@syzkaller.appspotmail.com
Tested on:
commit: 2b3d5988 Add linux-next specific files for 20240404
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
console output: https://syzkaller.appspot.com/x/log.txt?x=156898b9180000
Note: testing is done by a robot and is best-effort only.
syzbot has tested the proposed patch and the reproducer did not trigger any issue:
Reported-and-tested-by: syzbot+27cc65...@syzkaller.appspotmail.com
Tested on:
commit: 2b3d5988 Add linux-next specific files for 20240404
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
console output: https://syzkaller.appspot.com/x/log.txt?x=156898b9180000
kernel config: https://syzkaller.appspot.com/x/.config?x=9c48fd2523cdee5e
dashboard link: https://syzkaller.appspot.com/bug?extid=27cc650ef45b379dfe5a
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=138af0b9180000
dashboard link: https://syzkaller.appspot.com/bug?extid=27cc650ef45b379dfe5a
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Note: testing is done by a robot and is best-effort only.
syzbot
Apr 10, 2024, 1:19:03 AMApr 10
to ch...@kernel.org, dha...@google.com, hsia...@linux.alibaba.com, huy...@coolpad.com, jeff...@linux.alibaba.com, linux...@lists.ozlabs.org, linux-...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com, xi...@kernel.org
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
rd
[ 7.642260][ T1] usbcore: registered new interface driver dln2
[ 7.645615][ T1] usbcore: registered new interface driver pn533_usb
[ 7.653071][ T1] nfcsim 0.2 initialized
[ 7.654695][ T1] usbcore: registered new interface driver port100
[ 7.656867][ T1] usbcore: registered new interface driver nfcmrvl
[ 7.665132][ T1] Loading iSCSI transport class v2.0-870.
[ 7.683597][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues
[ 7.695844][ T1] ------------[ cut here ]------------
[ 7.697288][ T1] refcount_t: decrement hit 0; leaking memory.
[ 7.699005][ T1] WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0
[ 7.701375][ T1] Modules linked in:
[ 7.702534][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc2-syzkaller-00004-g38bac6fb80a8 #0
[ 7.704651][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 7.706586][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 7.707973][ T1] Code: b2 00 00 00 e8 07 c9 e9 fc 5b 5d c3 cc cc cc cc e8 fb c8 e9 fc c6 05 11 fa e7 0a 01 90 48 c7 c7 20 37 1f 8c e8 07 64 ac fc 90 <0f> 0b 90 90 eb d9 e8 db c8 e9 fc c6 05 ee f9 e7 0a 01 90 48 c7 c7
[ 7.711681][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 7.713246][ T1] RAX: 80ca843c79c95400 RBX: ffff888020c7401c RCX: ffff8880166d0000
[ 7.715799][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 7.718268][ T1] RBP: 0000000000000004 R08: ffffffff8157ffc2 R09: fffffbfff1c39af8
[ 7.720624][ T1] R10: dffffc0000000000 R11: fffffbfff1c39af8 R12: ffffea0000843dc0
[ 7.722734][ T1] R13: ffffea0000843dc8 R14: 1ffffd40001087b9 R15: 0000000000000000
[ 7.725099][ T1] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[ 7.726800][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7.728599][ T1] CR2: ffff88823ffff000 CR3: 000000000e134000 CR4: 00000000003506f0
[ 7.731733][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7.733755][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 7.736386][ T1] Call Trace:
[ 7.737123][ T1] <TASK>
[ 7.738006][ T1] ? __warn+0x163/0x4e0
[ 7.740239][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.741359][ T1] ? report_bug+0x2b3/0x500
[ 7.742315][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.744221][ T1] ? handle_bug+0x3e/0x70
[ 7.745585][ T1] ? exc_invalid_op+0x1a/0x50
[ 7.746621][ T1] ? asm_exc_invalid_op+0x1a/0x20
[ 7.747841][ T1] ? __warn_printk+0x292/0x360
[ 7.749317][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.751175][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 7.753784][ T1] __free_pages_ok+0xc60/0xd90
[ 7.755034][ T1] make_alloc_exact+0xa3/0xf0
[ 7.756224][ T1] vring_alloc_queue_split+0x20a/0x600
[ 7.757834][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 7.758900][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 7.759818][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 7.761405][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 7.763004][ T1] ? really_probe+0x2b8/0xad0
[ 7.764204][ T1] ? driver_probe_device+0x50/0x430
[ 7.765429][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 7.766771][ T1] ? ret_from_fork+0x4b/0x80
[ 7.767981][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 7.769915][ T1] vring_create_virtqueue+0xca/0x110
[ 7.771623][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.773424][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.775021][ T1] setup_vq+0xe9/0x2d0
[ 7.775787][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.776793][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.778866][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.780614][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.782273][ T1] vp_setup_vq+0xbf/0x330
[ 7.783410][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 7.784986][ T1] ? ioread16+0x2f/0x90
[ 7.786652][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.788199][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 7.789141][ T1] vp_find_vqs+0x4c/0x4e0
[ 7.790440][ T1] virtscsi_init+0x8db/0xd00
[ 7.791488][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 7.792682][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 7.794430][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 7.795521][ T1] ? vp_get+0xfd/0x140
[ 7.796236][ T1] virtscsi_probe+0x3ea/0xf60
[ 7.797138][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 7.798431][ T1] ? kernfs_add_one+0x156/0x8b0
[ 7.800087][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 7.800985][ T1] ? virtio_features_ok+0x10c/0x270
[ 7.801835][ T1] virtio_dev_probe+0x991/0xaf0
[ 7.804175][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 7.805887][ T1] really_probe+0x2b8/0xad0
[ 7.807150][ T1] __driver_probe_device+0x1a2/0x390
[ 7.808227][ T1] driver_probe_device+0x50/0x430
[ 7.809376][ T1] __driver_attach+0x45f/0x710
[ 7.810502][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.811607][ T1] bus_for_each_dev+0x239/0x2b0
[ 7.812602][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.813726][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 7.814800][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 7.816656][ T1] bus_add_driver+0x347/0x620
[ 7.817772][ T1] driver_register+0x23a/0x320
[ 7.818808][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.819842][ T1] virtio_scsi_init+0x65/0xe0
[ 7.820896][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.822020][ T1] do_one_initcall+0x248/0x880
[ 7.822891][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.823925][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.825313][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 7.826394][ T1] ? __pfx_parse_args+0x10/0x10
[ 7.827532][ T1] ? do_initcalls+0x1c/0x80
[ 7.828853][ T1] ? rcu_is_watching+0x15/0xb0
[ 7.830432][ T1] do_initcall_level+0x157/0x210
[ 7.831313][ T1] do_initcalls+0x3f/0x80
[ 7.832573][ T1] kernel_init_freeable+0x435/0x5d0
[ 7.833476][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 7.834461][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.836095][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.837265][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.838679][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.839592][ T1] kernel_init+0x1d/0x2b0
[ 7.840621][ T1] ret_from_fork+0x4b/0x80
[ 7.841417][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.842402][ T1] ret_from_fork_asm+0x1a/0x30
[ 7.843630][ T1] </TASK>
[ 7.844181][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 7.845673][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc2-syzkaller-00004-g38bac6fb80a8 #0
[ 7.847124][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 7.848661][ T1] Call Trace:
[ 7.848661][ T1] <TASK>
[ 7.848661][ T1] dump_stack_lvl+0x241/0x360
[ 7.848661][ T1] ? __pfx_dump_stack_lvl+0x10/0x10
[ 7.848661][ T1] ? __pfx__printk+0x10/0x10
[ 7.848661][ T1] ? _printk+0xd5/0x120
[ 7.848661][ T1] ? vscnprintf+0x5d/0x90
[ 7.848661][ T1] panic+0x349/0x860
[ 7.848661][ T1] ? __warn+0x172/0x4e0
[ 7.858266][ T1] ? __pfx_panic+0x10/0x10
[ 7.858266][ T1] ? show_trace_log_lvl+0x4e6/0x520
[ 7.858266][ T1] ? ret_from_fork_asm+0x1a/0x30
[ 7.858266][ T1] __warn+0x346/0x4e0
[ 7.858266][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.858266][ T1] report_bug+0x2b3/0x500
[ 7.858266][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.858266][ T1] handle_bug+0x3e/0x70
[ 7.868191][ T1] exc_invalid_op+0x1a/0x50
[ 7.868191][ T1] asm_exc_invalid_op+0x1a/0x20
[ 7.868191][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 7.868191][ T1] Code: b2 00 00 00 e8 07 c9 e9 fc 5b 5d c3 cc cc cc cc e8 fb c8 e9 fc c6 05 11 fa e7 0a 01 90 48 c7 c7 20 37 1f 8c e8 07 64 ac fc 90 <0f> 0b 90 90 eb d9 e8 db c8 e9 fc c6 05 ee f9 e7 0a 01 90 48 c7 c7
[ 7.868191][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 7.878283][ T1] RAX: 80ca843c79c95400 RBX: ffff888020c7401c RCX: ffff8880166d0000
[ 7.878283][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 7.878283][ T1] RBP: 0000000000000004 R08: ffffffff8157ffc2 R09: fffffbfff1c39af8
[ 7.878283][ T1] R10: dffffc0000000000 R11: fffffbfff1c39af8 R12: ffffea0000843dc0
[ 7.878283][ T1] R13: ffffea0000843dc8 R14: 1ffffd40001087b9 R15: 0000000000000000
[ 7.878283][ T1] ? __warn_printk+0x292/0x360
[ 7.888190][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 7.888190][ T1] __free_pages_ok+0xc60/0xd90
[ 7.888190][ T1] make_alloc_exact+0xa3/0xf0
[ 7.888190][ T1] vring_alloc_queue_split+0x20a/0x600
[ 7.888190][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 7.888190][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 7.888190][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 7.888190][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 7.898282][ T1] ? really_probe+0x2b8/0xad0
[ 7.898282][ T1] ? driver_probe_device+0x50/0x430
[ 7.898282][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 7.898282][ T1] ? ret_from_fork+0x4b/0x80
[ 7.898282][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 7.898282][ T1] vring_create_virtqueue+0xca/0x110
[ 7.898282][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.898282][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] setup_vq+0xe9/0x2d0
[ 7.908146][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] vp_setup_vq+0xbf/0x330
[ 7.908146][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 7.908146][ T1] ? ioread16+0x2f/0x90
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.918266][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 7.918266][ T1] vp_find_vqs+0x4c/0x4e0
[ 7.918266][ T1] virtscsi_init+0x8db/0xd00
[ 7.918266][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 7.918266][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 7.918266][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 7.918266][ T1] ? vp_get+0xfd/0x140
[ 7.918266][ T1] virtscsi_probe+0x3ea/0xf60
[ 7.918266][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 7.918266][ T1] ? kernfs_add_one+0x156/0x8b0
[ 7.918266][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 7.928228][ T1] ? virtio_features_ok+0x10c/0x270
[ 7.928228][ T1] virtio_dev_probe+0x991/0xaf0
[ 7.928228][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 7.928228][ T1] really_probe+0x2b8/0xad0
[ 7.928228][ T1] __driver_probe_device+0x1a2/0x390
[ 7.928228][ T1] driver_probe_device+0x50/0x430
[ 7.928228][ T1] __driver_attach+0x45f/0x710
[ 7.928228][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.928228][ T1] bus_for_each_dev+0x239/0x2b0
[ 7.928228][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.928228][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 7.938278][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 7.938278][ T1] bus_add_driver+0x347/0x620
[ 7.938278][ T1] driver_register+0x23a/0x320
[ 7.938278][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.938278][ T1] virtio_scsi_init+0x65/0xe0
[ 7.938278][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.938278][ T1] do_one_initcall+0x248/0x880
[ 7.938278][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.948187][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.948187][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 7.948187][ T1] ? __pfx_parse_args+0x10/0x10
[ 7.948187][ T1] ? do_initcalls+0x1c/0x80
[ 7.948187][ T1] ? rcu_is_watching+0x15/0xb0
[ 7.948187][ T1] do_initcall_level+0x157/0x210
[ 7.948187][ T1] do_initcalls+0x3f/0x80
[ 7.948187][ T1] kernel_init_freeable+0x435/0x5d0
[ 7.948187][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 7.948187][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.948187][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] kernel_init+0x1d/0x2b0
[ 7.958283][ T1] ret_from_fork+0x4b/0x80
[ 7.958283][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] ret_from_fork_asm+0x1a/0x30
[ 7.958283][ T1] </TASK>
[ 7.958283][ T1] Kernel Offset: disabled
[ 7.958283][ T1] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.21.4'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2267282665=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at 0ee3535ea
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ee3535ea8ff21d50e44372bb1cfd147e299ab5b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240404-085507'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ee3535ea8ff21d50e44372bb1cfd147e299ab5b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240404-085507'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ee3535ea8ff21d50e44372bb1cfd147e299ab5b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240404-085507'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"0ee3535ea8ff21d50e44372bb1cfd147e299ab5b\"
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=16dbfd89180000
Tested on:
commit: 38bac6fb erofs: add a reserved buffer pool for lz4 dec..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev
kernel config: https://syzkaller.appspot.com/x/.config?x=51cdcd4a8f332569
syzbot tried to test the proposed patch but the build/boot failed:
rd
[ 7.642260][ T1] usbcore: registered new interface driver dln2
[ 7.645615][ T1] usbcore: registered new interface driver pn533_usb
[ 7.653071][ T1] nfcsim 0.2 initialized
[ 7.654695][ T1] usbcore: registered new interface driver port100
[ 7.656867][ T1] usbcore: registered new interface driver nfcmrvl
[ 7.665132][ T1] Loading iSCSI transport class v2.0-870.
[ 7.683597][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues
[ 7.695844][ T1] ------------[ cut here ]------------
[ 7.697288][ T1] refcount_t: decrement hit 0; leaking memory.
[ 7.699005][ T1] WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0
[ 7.701375][ T1] Modules linked in:
[ 7.702534][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc2-syzkaller-00004-g38bac6fb80a8 #0
[ 7.704651][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 7.706586][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 7.707973][ T1] Code: b2 00 00 00 e8 07 c9 e9 fc 5b 5d c3 cc cc cc cc e8 fb c8 e9 fc c6 05 11 fa e7 0a 01 90 48 c7 c7 20 37 1f 8c e8 07 64 ac fc 90 <0f> 0b 90 90 eb d9 e8 db c8 e9 fc c6 05 ee f9 e7 0a 01 90 48 c7 c7
[ 7.711681][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 7.713246][ T1] RAX: 80ca843c79c95400 RBX: ffff888020c7401c RCX: ffff8880166d0000
[ 7.715799][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 7.718268][ T1] RBP: 0000000000000004 R08: ffffffff8157ffc2 R09: fffffbfff1c39af8
[ 7.720624][ T1] R10: dffffc0000000000 R11: fffffbfff1c39af8 R12: ffffea0000843dc0
[ 7.722734][ T1] R13: ffffea0000843dc8 R14: 1ffffd40001087b9 R15: 0000000000000000
[ 7.725099][ T1] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[ 7.726800][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7.728599][ T1] CR2: ffff88823ffff000 CR3: 000000000e134000 CR4: 00000000003506f0
[ 7.731733][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7.733755][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 7.736386][ T1] Call Trace:
[ 7.737123][ T1] <TASK>
[ 7.738006][ T1] ? __warn+0x163/0x4e0
[ 7.740239][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.741359][ T1] ? report_bug+0x2b3/0x500
[ 7.742315][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.744221][ T1] ? handle_bug+0x3e/0x70
[ 7.745585][ T1] ? exc_invalid_op+0x1a/0x50
[ 7.746621][ T1] ? asm_exc_invalid_op+0x1a/0x20
[ 7.747841][ T1] ? __warn_printk+0x292/0x360
[ 7.749317][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.751175][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 7.753784][ T1] __free_pages_ok+0xc60/0xd90
[ 7.755034][ T1] make_alloc_exact+0xa3/0xf0
[ 7.756224][ T1] vring_alloc_queue_split+0x20a/0x600
[ 7.757834][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 7.758900][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 7.759818][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 7.761405][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 7.763004][ T1] ? really_probe+0x2b8/0xad0
[ 7.764204][ T1] ? driver_probe_device+0x50/0x430
[ 7.765429][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 7.766771][ T1] ? ret_from_fork+0x4b/0x80
[ 7.767981][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 7.769915][ T1] vring_create_virtqueue+0xca/0x110
[ 7.771623][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.773424][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.775021][ T1] setup_vq+0xe9/0x2d0
[ 7.775787][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.776793][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.778866][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.780614][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.782273][ T1] vp_setup_vq+0xbf/0x330
[ 7.783410][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 7.784986][ T1] ? ioread16+0x2f/0x90
[ 7.786652][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.788199][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 7.789141][ T1] vp_find_vqs+0x4c/0x4e0
[ 7.790440][ T1] virtscsi_init+0x8db/0xd00
[ 7.791488][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 7.792682][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 7.794430][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 7.795521][ T1] ? vp_get+0xfd/0x140
[ 7.796236][ T1] virtscsi_probe+0x3ea/0xf60
[ 7.797138][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 7.798431][ T1] ? kernfs_add_one+0x156/0x8b0
[ 7.800087][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 7.800985][ T1] ? virtio_features_ok+0x10c/0x270
[ 7.801835][ T1] virtio_dev_probe+0x991/0xaf0
[ 7.804175][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 7.805887][ T1] really_probe+0x2b8/0xad0
[ 7.807150][ T1] __driver_probe_device+0x1a2/0x390
[ 7.808227][ T1] driver_probe_device+0x50/0x430
[ 7.809376][ T1] __driver_attach+0x45f/0x710
[ 7.810502][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.811607][ T1] bus_for_each_dev+0x239/0x2b0
[ 7.812602][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.813726][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 7.814800][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 7.816656][ T1] bus_add_driver+0x347/0x620
[ 7.817772][ T1] driver_register+0x23a/0x320
[ 7.818808][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.819842][ T1] virtio_scsi_init+0x65/0xe0
[ 7.820896][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.822020][ T1] do_one_initcall+0x248/0x880
[ 7.822891][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.823925][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.825313][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 7.826394][ T1] ? __pfx_parse_args+0x10/0x10
[ 7.827532][ T1] ? do_initcalls+0x1c/0x80
[ 7.828853][ T1] ? rcu_is_watching+0x15/0xb0
[ 7.830432][ T1] do_initcall_level+0x157/0x210
[ 7.831313][ T1] do_initcalls+0x3f/0x80
[ 7.832573][ T1] kernel_init_freeable+0x435/0x5d0
[ 7.833476][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 7.834461][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.836095][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.837265][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.838679][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.839592][ T1] kernel_init+0x1d/0x2b0
[ 7.840621][ T1] ret_from_fork+0x4b/0x80
[ 7.841417][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.842402][ T1] ret_from_fork_asm+0x1a/0x30
[ 7.843630][ T1] </TASK>
[ 7.844181][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 7.845673][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc2-syzkaller-00004-g38bac6fb80a8 #0
[ 7.847124][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 7.848661][ T1] Call Trace:
[ 7.848661][ T1] <TASK>
[ 7.848661][ T1] dump_stack_lvl+0x241/0x360
[ 7.848661][ T1] ? __pfx_dump_stack_lvl+0x10/0x10
[ 7.848661][ T1] ? __pfx__printk+0x10/0x10
[ 7.848661][ T1] ? _printk+0xd5/0x120
[ 7.848661][ T1] ? vscnprintf+0x5d/0x90
[ 7.848661][ T1] panic+0x349/0x860
[ 7.848661][ T1] ? __warn+0x172/0x4e0
[ 7.858266][ T1] ? __pfx_panic+0x10/0x10
[ 7.858266][ T1] ? show_trace_log_lvl+0x4e6/0x520
[ 7.858266][ T1] ? ret_from_fork_asm+0x1a/0x30
[ 7.858266][ T1] __warn+0x346/0x4e0
[ 7.858266][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.858266][ T1] report_bug+0x2b3/0x500
[ 7.858266][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 7.858266][ T1] handle_bug+0x3e/0x70
[ 7.868191][ T1] exc_invalid_op+0x1a/0x50
[ 7.868191][ T1] asm_exc_invalid_op+0x1a/0x20
[ 7.868191][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 7.868191][ T1] Code: b2 00 00 00 e8 07 c9 e9 fc 5b 5d c3 cc cc cc cc e8 fb c8 e9 fc c6 05 11 fa e7 0a 01 90 48 c7 c7 20 37 1f 8c e8 07 64 ac fc 90 <0f> 0b 90 90 eb d9 e8 db c8 e9 fc c6 05 ee f9 e7 0a 01 90 48 c7 c7
[ 7.868191][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 7.878283][ T1] RAX: 80ca843c79c95400 RBX: ffff888020c7401c RCX: ffff8880166d0000
[ 7.878283][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 7.878283][ T1] RBP: 0000000000000004 R08: ffffffff8157ffc2 R09: fffffbfff1c39af8
[ 7.878283][ T1] R10: dffffc0000000000 R11: fffffbfff1c39af8 R12: ffffea0000843dc0
[ 7.878283][ T1] R13: ffffea0000843dc8 R14: 1ffffd40001087b9 R15: 0000000000000000
[ 7.878283][ T1] ? __warn_printk+0x292/0x360
[ 7.888190][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 7.888190][ T1] __free_pages_ok+0xc60/0xd90
[ 7.888190][ T1] make_alloc_exact+0xa3/0xf0
[ 7.888190][ T1] vring_alloc_queue_split+0x20a/0x600
[ 7.888190][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 7.888190][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 7.888190][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 7.888190][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 7.898282][ T1] ? really_probe+0x2b8/0xad0
[ 7.898282][ T1] ? driver_probe_device+0x50/0x430
[ 7.898282][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 7.898282][ T1] ? ret_from_fork+0x4b/0x80
[ 7.898282][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 7.898282][ T1] vring_create_virtqueue+0xca/0x110
[ 7.898282][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.898282][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] setup_vq+0xe9/0x2d0
[ 7.908146][ T1] ? __pfx_vp_notify+0x10/0x10
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.908146][ T1] vp_setup_vq+0xbf/0x330
[ 7.908146][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 7.908146][ T1] ? ioread16+0x2f/0x90
[ 7.908146][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 7.918266][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 7.918266][ T1] vp_find_vqs+0x4c/0x4e0
[ 7.918266][ T1] virtscsi_init+0x8db/0xd00
[ 7.918266][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 7.918266][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 7.918266][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 7.918266][ T1] ? vp_get+0xfd/0x140
[ 7.918266][ T1] virtscsi_probe+0x3ea/0xf60
[ 7.918266][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 7.918266][ T1] ? kernfs_add_one+0x156/0x8b0
[ 7.918266][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 7.928228][ T1] ? virtio_features_ok+0x10c/0x270
[ 7.928228][ T1] virtio_dev_probe+0x991/0xaf0
[ 7.928228][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 7.928228][ T1] really_probe+0x2b8/0xad0
[ 7.928228][ T1] __driver_probe_device+0x1a2/0x390
[ 7.928228][ T1] driver_probe_device+0x50/0x430
[ 7.928228][ T1] __driver_attach+0x45f/0x710
[ 7.928228][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.928228][ T1] bus_for_each_dev+0x239/0x2b0
[ 7.928228][ T1] ? __pfx___driver_attach+0x10/0x10
[ 7.928228][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 7.938278][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 7.938278][ T1] bus_add_driver+0x347/0x620
[ 7.938278][ T1] driver_register+0x23a/0x320
[ 7.938278][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.938278][ T1] virtio_scsi_init+0x65/0xe0
[ 7.938278][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.938278][ T1] do_one_initcall+0x248/0x880
[ 7.938278][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 7.948187][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.948187][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 7.948187][ T1] ? __pfx_parse_args+0x10/0x10
[ 7.948187][ T1] ? do_initcalls+0x1c/0x80
[ 7.948187][ T1] ? rcu_is_watching+0x15/0xb0
[ 7.948187][ T1] do_initcall_level+0x157/0x210
[ 7.948187][ T1] do_initcalls+0x3f/0x80
[ 7.948187][ T1] kernel_init_freeable+0x435/0x5d0
[ 7.948187][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 7.948187][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 7.948187][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] kernel_init+0x1d/0x2b0
[ 7.958283][ T1] ret_from_fork+0x4b/0x80
[ 7.958283][ T1] ? __pfx_kernel_init+0x10/0x10
[ 7.958283][ T1] ret_from_fork_asm+0x1a/0x30
[ 7.958283][ T1] </TASK>
[ 7.958283][ T1] Kernel Offset: disabled
[ 7.958283][ T1] Rebooting in 86400 seconds..
syzkaller build log:
go env (err=<nil>)
GO111MODULE='auto'
GOARCH='amd64'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFLAGS=''
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.21.4'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2267282665=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at 0ee3535ea
nothing to commit, working tree clean
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
tput: No value for $TERM and no -T specified
tput: No value for $TERM and no -T specified
Makefile:31: run command via tools/syz-env for best compatibility, see:
Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ee3535ea8ff21d50e44372bb1cfd147e299ab5b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240404-085507'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ee3535ea8ff21d50e44372bb1cfd147e299ab5b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240404-085507'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=0ee3535ea8ff21d50e44372bb1cfd147e299ab5b -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240404-085507'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/linux_amd64
gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \
-m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"0ee3535ea8ff21d50e44372bb1cfd147e299ab5b\"
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=16dbfd89180000
Tested on:
commit: 38bac6fb erofs: add a reserved buffer pool for lz4 dec..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev
kernel config: https://syzkaller.appspot.com/x/.config?x=51cdcd4a8f332569
dashboard link: https://syzkaller.appspot.com/bug?extid=27cc650ef45b379dfe5a
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Note: no patches were applied.
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Gao Xiang
Apr 23, 2024, 7:34:34 PM (7 days ago) Apr 23
to syzbot, linux...@lists.ozlabs.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
On 2024/4/10 13:19, syzbot wrote:
> Hello,
>
> syzbot tried to test the proposed patch but the build/boot failed:
Since
https://lore.kernel.org/r/20240408215231.3...@google.com
has been folded into the original patch and this issue is only in -next.
Thanks,
Gao Xiang
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