[syzbot] [ide?] Internal error in ata_sff_freeze

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3:46 AM (4 hours ago) 3:46 AM
to cas...@kernel.org, dle...@kernel.org, linu...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
Hello,

syzbot found the following issue on:

HEAD commit: 2f1baf1fc892 Merge tag 'trace-v7.2-rc7' of git://git.kerne..
git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux master
console output: https://syzkaller.appspot.com/x/log.txt?x=1564469e580000
kernel config: https://syzkaller.appspot.com/x/.config?x=97ba2e017420cdcb
dashboard link: https://syzkaller.appspot.com/bug?extid=891c7b195b408052e519
compiler: aarch64-linux-gnu-gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
userspace arch: arm64

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/fa3fbcfdac58/non_bootable_disk-2f1baf1f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2b4adcfb67df/vmlinux-2f1baf1f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/72646a392f58/Image-2f1baf1f.gz.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+891c7b...@syzkaller.appspotmail.com

EXT4-fs (vda): shut down requested (2)
Aborting journal on device vda-8.
Internal error: synchronous external abort: 0000000096000050 [#1] SMP
Modules linked in:
CPU: 0 UID: 0 PID: 14268 Comm: syz.1.3901 Tainted: G M syzkaller #0 PREEMPT
Tainted: [M]=MACHINE_CHECK
Hardware name: linux,dummy-virt (DT)
pstate: 814020c9 (Nzcv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : __raw_writeb arch/arm64/include/asm/io.h:29 [inline]
pc : writeb include/asm-generic/io.h:265 [inline]
pc : iowrite8 include/asm-generic/io.h:924 [inline]
pc : ata_sff_set_devctl drivers/ata/libata-sff.c:233 [inline]
pc : ata_sff_freeze+0x7c/0x90 drivers/ata/libata-sff.c:1606
lr : __ata_port_freeze drivers/ata/libata-eh.c:1124 [inline]
lr : ata_eh_freeze_port+0x34/0x5c drivers/ata/libata-eh.c:1167
sp : ffff800083c83960
x29: ffff800083c83960 x28: fdf0000006125500 x27: 0000000000000000
x26: 0000000000000001 x25: ffff800081f190d0 x24: ffff800082753b40
x23: 0000000000000000 x22: 0000000000000000 x21: f3f000003c8c0000
x20: 0000000000000000 x19: f3f000003c8c0000 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: f3f000003c8c23f6
x14: 0000000000000000 x13: 000000000006bb51 x12: ffff80007fffffff
x11: fff00000030ea808 x10: 000000800000c000 x9 : 0000000000000000
x8 : fcf0000004ada000 x7 : ffffc1ffc012b640 x6 : 0000000000000001
x5 : 00000c0000000000 x4 : ffffc1ffc012b640 x3 : ffff800082ceb208
x2 : 0000000000000000 x1 : 000000000000000a x0 : ffff8000885b1002
Call trace:
writeb include/asm-generic/io.h:264 [inline] (P)
iowrite8 include/asm-generic/io.h:924 [inline] (P)
ata_sff_set_devctl drivers/ata/libata-sff.c:233 [inline] (P)
ata_sff_freeze+0x7c/0x90 drivers/ata/libata-sff.c:1606 (P)
__ata_port_freeze drivers/ata/libata-eh.c:1124 [inline]
ata_eh_freeze_port+0x34/0x5c drivers/ata/libata-eh.c:1167
ata_host_start+0x13c/0x228 drivers/ata/libata-core.c:6041
ata_pci_sff_activate_host+0x50/0x340 drivers/ata/libata-sff.c:2275
ata_pci_init_one+0x19c/0x1d8 drivers/ata/libata-sff.c:2402
ata_pci_bmdma_init_one+0x14/0x20 drivers/ata/libata-sff.c:3170
ata_generic_init_one+0xc4/0x1ac drivers/ata/ata_generic.c:209
local_pci_probe+0x40/0xa8 drivers/pci/pci-driver.c:332
pci_call_probe drivers/pci/pci-driver.c:394 [inline]
__pci_device_probe drivers/pci/pci-driver.c:455 [inline]
pci_device_probe+0xd8/0x288 drivers/pci/pci-driver.c:489
call_driver_probe drivers/base/dd.c:628 [inline]
really_probe+0xbc/0x2bc drivers/base/dd.c:706
__driver_probe_device+0x118/0x16c drivers/base/dd.c:868
device_driver_attach+0x48/0xb4 drivers/base/dd.c:1203
bind_store+0x7c/0xd8 drivers/base/bus.c:267
drv_attr_store+0x24/0x40 drivers/base/bus.c:125
sysfs_kf_write+0x7c/0x98 fs/sysfs/file.c:145
kernfs_fop_write_iter+0x138/0x200 fs/kernfs/file.c:345
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x244/0x36c fs/read_write.c:687
ksys_write+0x70/0x108 fs/read_write.c:739
__do_sys_write fs/read_write.c:750 [inline]
__se_sys_write fs/read_write.c:747 [inline]
__arm64_sys_write+0x1c/0x30 fs/read_write.c:747
__invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
invoke_syscall+0x54/0x10c arch/arm64/kernel/syscall.c:49
el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:121
do_el0_svc+0x1c/0x34 arch/arm64/kernel/syscall.c:140
el0_svc+0x38/0x1fc arch/arm64/kernel/entry-common.c:736
el0t_64_sync_handler+0xa0/0xf0 arch/arm64/kernel/entry-common.c:755
el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:594
Code: d65f03c0 f9404800 b4fffe60 d50332bf (39000001)
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
0: d65f03c0 ret
4: f9404800 ldr x0, [x0, #144]
8: b4fffe60 cbz x0, 0xffffffffffffffd4
c: d50332bf dmb oshst
* 10: 39000001 strb w1, [x0] <-- trapping instruction


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