[syzbot] [bpf?] WARNING in bpf_mprog_attach
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syzbot
Sep 26, 2023, 4:47:35 PM9/26/23
to and...@kernel.org, a...@kernel.org, b...@vger.kernel.org, dan...@iogearbox.net, hao...@google.com, john.fa...@gmail.com, jo...@kernel.org, kps...@kernel.org, linux-...@vger.kernel.org, marti...@linux.dev, s...@google.com, so...@kernel.org, syzkall...@googlegroups.com, yongho...@linux.dev
Hello,
syzbot found the following issue on:
HEAD commit: bf6547d8715b Merge branches 'for-next/sve-remove-pseudo-re..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=15e15266680000
kernel config: https://syzkaller.appspot.com/x/.config?x=87bf2bd0cc8825ea
dashboard link: https://syzkaller.appspot.com/bug?extid=baa44e3dbbe48e05c1ad
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1429fe12680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=135744cc680000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ce9077c94d96/disk-bf6547d8.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a846fe1c61d3/vmlinux-bf6547d8.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b4436f7e6852/Image-bf6547d8.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+baa44e...@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
Modules linked in:
CPU: 1 PID: 6072 Comm: syz-executor183 Not tainted 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
pc : bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
pc : bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
lr : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
lr : bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
lr : bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
sp : ffff800096767920
x29: ffff800096767a00 x28: 0000000000000040 x27: 1fffe0001983e841
x26: 0000000000000000 x25: ffff0000cc1f4208 x24: 00000000ffffffde
x23: ffff8000967679a0 x22: ffff8000967679c0 x21: ffff0000cc1f4008
x20: ffff0000cc1f4628 x19: dfff800000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a576f00 x15: 0000000000000002
x14: 1ffff00012cecf34 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000d4921bc0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000008 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000000 x1 : 0000000000000040 x0 : 000000000000003f
Call trace:
bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
tcx_prog_attach+0x23c/0x6ac kernel/bpf/tcx.c:39
bpf_prog_attach+0x19c/0x340 kernel/bpf/syscall.c:3848
__sys_bpf+0x2e8/0x5dc kernel/bpf/syscall.c:5344
__do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
__arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5437
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 576
hardirqs last enabled at (575): [<ffff800080034500>] local_daif_restore+0x1c/0x3c arch/arm64/include/asm/daifflags.h:75
hardirqs last disabled at (576): [<ffff80008a625394>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436
softirqs last enabled at (562): [<ffff8000805caa34>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last enabled at (562): [<ffff8000805caa34>] bpf_prog_by_id+0x144/0x168 kernel/bpf/syscall.c:4083
softirqs last disabled at (560): [<ffff8000805ca92c>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (560): [<ffff8000805ca92c>] bpf_prog_by_id+0x3c/0x168 kernel/bpf/syscall.c:4077
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
Modules linked in:
CPU: 1 PID: 6072 Comm: syz-executor183 Tainted: G W 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
pc : bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
lr : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
lr : bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
sp : ffff8000967678c0
x29: ffff8000967678c0 x28: 0000000000000040 x27: 1fffe0001983e841
x26: dfff800000000000 x25: 0000000000000040 x24: 0000000000000008
x23: ffff0000cc1f4008 x22: 00000000ffffffff x21: ffff0000cc1f4208
x20: ffff8000967679c0 x19: ffff800096767ac0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a576f00 x15: 0000000000000002
x14: 1ffff00012cecf34 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000d4921bc0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000008 x4 : 0000000000000008 x3 : 00000000ffffffff
x2 : ffff8000967679c0 x1 : 0000000000000040 x0 : 000000000000003f
Call trace:
bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
bpf_mprog_attach+0xa40/0xb88 kernel/bpf/mprog.c:288
tcx_prog_attach+0x23c/0x6ac kernel/bpf/tcx.c:39
bpf_prog_attach+0x19c/0x340 kernel/bpf/syscall.c:3848
__sys_bpf+0x2e8/0x5dc kernel/bpf/syscall.c:5344
__do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
__arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5437
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 724
hardirqs last enabled at (723): [<ffff80008a6253dc>] el1_dbg+0x6c/0x80 arch/arm64/kernel/entry-common.c:439
hardirqs last disabled at (724): [<ffff80008a625394>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436
softirqs last enabled at (594): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (594): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (579): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
Modules linked in:
CPU: 1 PID: 6072 Comm: syz-executor183 Tainted: G W 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
pc : bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
pc : bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
lr : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
lr : bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
lr : bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
sp : ffff8000967678c0
x29: ffff8000967678c0 x28: 1fffe0001983e882 x27: 1fffe0001983e841
x26: dfff800000000000 x25: 0000000000000040 x24: ffff0000cc1f4628
x23: ffff0000cc1f4410 x22: 0000000000000000 x21: ffff0000cc1f4210
x20: ffff8000967679c0 x19: ffff800096767ac0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a576ca0 x15: ffff80009503e000
x14: ffff80009509e000 x13: ffff80009503e000 x12: ffff80009509e000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000d4921bc0 x7 : ffff800093fee000 x6 : ffff80009501e000
x5 : ffff0000cc1f4410 x4 : ffff0000cc1f4208 x3 : ffff0000cc1f4390
x2 : fffffffffffffff0 x1 : 0000000000000040 x0 : 000000000000003f
Call trace:
bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
bpf_mprog_attach+0xa40/0xb88 kernel/bpf/mprog.c:288
tcx_prog_attach+0x23c/0x6ac kernel/bpf/tcx.c:39
bpf_prog_attach+0x19c/0x340 kernel/bpf/syscall.c:3848
__sys_bpf+0x2e8/0x5dc kernel/bpf/syscall.c:5344
__do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
__arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5437
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 746
hardirqs last enabled at (745): [<ffff80008a627868>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last enabled at (745): [<ffff80008a627868>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (746): [<ffff80008a625394>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436
softirqs last enabled at (740): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (740): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (727): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
---
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 bug is already fixed, 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 bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, 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: bf6547d8715b Merge branches 'for-next/sve-remove-pseudo-re..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=15e15266680000
kernel config: https://syzkaller.appspot.com/x/.config?x=87bf2bd0cc8825ea
dashboard link: https://syzkaller.appspot.com/bug?extid=baa44e3dbbe48e05c1ad
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1429fe12680000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=135744cc680000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/ce9077c94d96/disk-bf6547d8.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/a846fe1c61d3/vmlinux-bf6547d8.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b4436f7e6852/Image-bf6547d8.gz.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+baa44e...@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
Modules linked in:
CPU: 1 PID: 6072 Comm: syz-executor183 Not tainted 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
pc : bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
pc : bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
lr : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
lr : bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
lr : bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
sp : ffff800096767920
x29: ffff800096767a00 x28: 0000000000000040 x27: 1fffe0001983e841
x26: 0000000000000000 x25: ffff0000cc1f4208 x24: 00000000ffffffde
x23: ffff8000967679a0 x22: ffff8000967679c0 x21: ffff0000cc1f4008
x20: ffff0000cc1f4628 x19: dfff800000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a576f00 x15: 0000000000000002
x14: 1ffff00012cecf34 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000d4921bc0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000008 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000000 x1 : 0000000000000040 x0 : 000000000000003f
Call trace:
bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
bpf_mprog_pos_before kernel/bpf/mprog.c:200 [inline]
bpf_mprog_attach+0x584/0xb88 kernel/bpf/mprog.c:258
tcx_prog_attach+0x23c/0x6ac kernel/bpf/tcx.c:39
bpf_prog_attach+0x19c/0x340 kernel/bpf/syscall.c:3848
__sys_bpf+0x2e8/0x5dc kernel/bpf/syscall.c:5344
__do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
__arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5437
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 576
hardirqs last enabled at (575): [<ffff800080034500>] local_daif_restore+0x1c/0x3c arch/arm64/include/asm/daifflags.h:75
hardirqs last disabled at (576): [<ffff80008a625394>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436
softirqs last enabled at (562): [<ffff8000805caa34>] spin_unlock_bh include/linux/spinlock.h:396 [inline]
softirqs last enabled at (562): [<ffff8000805caa34>] bpf_prog_by_id+0x144/0x168 kernel/bpf/syscall.c:4083
softirqs last disabled at (560): [<ffff8000805ca92c>] spin_lock_bh include/linux/spinlock.h:356 [inline]
softirqs last disabled at (560): [<ffff8000805ca92c>] bpf_prog_by_id+0x3c/0x168 kernel/bpf/syscall.c:4077
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
Modules linked in:
CPU: 1 PID: 6072 Comm: syz-executor183 Tainted: G W 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
pc : bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
lr : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
lr : bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
sp : ffff8000967678c0
x29: ffff8000967678c0 x28: 0000000000000040 x27: 1fffe0001983e841
x26: dfff800000000000 x25: 0000000000000040 x24: 0000000000000008
x23: ffff0000cc1f4008 x22: 00000000ffffffff x21: ffff0000cc1f4208
x20: ffff8000967679c0 x19: ffff800096767ac0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a576f00 x15: 0000000000000002
x14: 1ffff00012cecf34 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000d4921bc0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000008 x4 : 0000000000000008 x3 : 00000000ffffffff
x2 : ffff8000967679c0 x1 : 0000000000000040 x0 : 000000000000003f
Call trace:
bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
bpf_mprog_insert+0x2bc/0x3f8 kernel/bpf/mprog.c:131
bpf_mprog_attach+0xa40/0xb88 kernel/bpf/mprog.c:288
tcx_prog_attach+0x23c/0x6ac kernel/bpf/tcx.c:39
bpf_prog_attach+0x19c/0x340 kernel/bpf/syscall.c:3848
__sys_bpf+0x2e8/0x5dc kernel/bpf/syscall.c:5344
__do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
__arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5437
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 724
hardirqs last enabled at (723): [<ffff80008a6253dc>] el1_dbg+0x6c/0x80 arch/arm64/kernel/entry-common.c:439
hardirqs last disabled at (724): [<ffff80008a625394>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436
softirqs last enabled at (594): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (594): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (579): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
WARNING: CPU: 1 PID: 6072 at include/linux/bpf_mprog.h:198 bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
Modules linked in:
CPU: 1 PID: 6072 Comm: syz-executor183 Tainted: G W 6.6.0-rc3-syzkaller-gbf6547d8715b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
pc : bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
pc : bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
lr : bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
lr : bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
lr : bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
sp : ffff8000967678c0
x29: ffff8000967678c0 x28: 1fffe0001983e882 x27: 1fffe0001983e841
x26: dfff800000000000 x25: 0000000000000040 x24: ffff0000cc1f4628
x23: ffff0000cc1f4410 x22: 0000000000000000 x21: ffff0000cc1f4210
x20: ffff8000967679c0 x19: ffff800096767ac0 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008a576ca0 x15: ffff80009503e000
x14: ffff80009509e000 x13: ffff80009503e000 x12: ffff80009509e000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : ffff0000d4921bc0 x7 : ffff800093fee000 x6 : ffff80009501e000
x5 : ffff0000cc1f4410 x4 : ffff0000cc1f4208 x3 : ffff0000cc1f4390
x2 : fffffffffffffff0 x1 : 0000000000000040 x0 : 000000000000003f
Call trace:
bpf_mprog_total include/linux/bpf_mprog.h:198 [inline]
bpf_mprog_entry_grow include/linux/bpf_mprog.h:277 [inline]
bpf_mprog_insert+0x2d0/0x3f8 kernel/bpf/mprog.c:142
bpf_mprog_attach+0xa40/0xb88 kernel/bpf/mprog.c:288
tcx_prog_attach+0x23c/0x6ac kernel/bpf/tcx.c:39
bpf_prog_attach+0x19c/0x340 kernel/bpf/syscall.c:3848
__sys_bpf+0x2e8/0x5dc kernel/bpf/syscall.c:5344
__do_sys_bpf kernel/bpf/syscall.c:5439 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5437 [inline]
__arm64_sys_bpf+0x80/0x98 kernel/bpf/syscall.c:5437
__invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
el0_svc+0x58/0x16c arch/arm64/kernel/entry-common.c:678
el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
irq event stamp: 746
hardirqs last enabled at (745): [<ffff80008a627868>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last enabled at (745): [<ffff80008a627868>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (746): [<ffff80008a625394>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436
softirqs last enabled at (740): [<ffff8000800218ec>] softirq_handle_end kernel/softirq.c:399 [inline]
softirqs last enabled at (740): [<ffff8000800218ec>] __do_softirq+0xac0/0xd54 kernel/softirq.c:582
softirqs last disabled at (727): [<ffff80008002aad4>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
---
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 bug is already fixed, 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 bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot
Sep 29, 2023, 3:25:46 PM9/29/23
to dan...@iogearbox.net, dan...@iogearbox.net, syzkall...@googlegroups.com
> On 9/26/23 10:47 PM, syzbot wrote:
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit: bf6547d8715b Merge branches 'for-next/sve-remove-pseudo-re..
>> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
>> console output: https://syzkaller.appspot.com/x/log.txt?x=15e15266680000
>> kernel config: https://syzkaller.appspot.com/x/.config?x=87bf2bd0cc8825ea
>> dashboard link: https://syzkaller.appspot.com/bug?extid=baa44e3dbbe48e05c1ad
>> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>> userspace arch: arm64
>> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1429fe12680000
>> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=135744cc680000
>>
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/ce9077c94d96/disk-bf6547d8.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/a846fe1c61d3/vmlinux-bf6547d8.xz
>> kernel image: https://storage.googleapis.com/syzbot-assets/b4436f7e6852/Image-bf6547d8.gz.xz
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+baa44e...@syzkaller.appspotmail.com
>
> #syz test: https://github.com/cilium/linux.git pr/mprog-fix
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit: bf6547d8715b Merge branches 'for-next/sve-remove-pseudo-re..
>> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
>> console output: https://syzkaller.appspot.com/x/log.txt?x=15e15266680000
>> kernel config: https://syzkaller.appspot.com/x/.config?x=87bf2bd0cc8825ea
>> dashboard link: https://syzkaller.appspot.com/bug?extid=baa44e3dbbe48e05c1ad
>> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>> userspace arch: arm64
>> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1429fe12680000
>> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=135744cc680000
>>
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/ce9077c94d96/disk-bf6547d8.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/a846fe1c61d3/vmlinux-bf6547d8.xz
>> kernel image: https://storage.googleapis.com/syzbot-assets/b4436f7e6852/Image-bf6547d8.gz.xz
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+baa44e...@syzkaller.appspotmail.com
>
Your commands are accepted, but please keep syzkall...@googlegroups.com mailing list in CC next time. It serves as a history of what happened with each bug report. Thank you.
syzbot
Sep 29, 2023, 4:24:17 PM9/29/23
to dan...@iogearbox.net, syzkall...@googlegroups.com
Hello,
syzbot has tested the proposed patch and the reproducer did not trigger any issue:
Reported-and-tested-by: syzbot+baa44e...@syzkaller.appspotmail.com
Tested on:
commit: 8fba38b8 selftest/bpf: Add various selftests for progr..
git tree: https://github.com/cilium/linux.git pr/mprog-fix
console output: https://syzkaller.appspot.com/x/log.txt?x=11cb39e1680000
kernel config: https://syzkaller.appspot.com/x/.config?x=34e61caa6c5fc1a0
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+baa44e...@syzkaller.appspotmail.com
Tested on:
commit: 8fba38b8 selftest/bpf: Add various selftests for progr..
git tree: https://github.com/cilium/linux.git pr/mprog-fix
console output: https://syzkaller.appspot.com/x/log.txt?x=11cb39e1680000
kernel config: https://syzkaller.appspot.com/x/.config?x=34e61caa6c5fc1a0
dashboard link: https://syzkaller.appspot.com/bug?extid=baa44e3dbbe48e05c1ad
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
Note: no patches were applied.
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64
Note: testing is done by a robot and is best-effort only.
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