* kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) @ 2018-11-16 23:32 syzbot 2018-11-18 20:09 ` syzbot 2019-03-20 20:35 ` syzbot 0 siblings, 2 replies; 6+ messages in thread From: syzbot @ 2018-11-16 23:32 UTC (permalink / raw) To: hverkuil, linux-kernel, linux-media, mchehab, syzkaller-bugs Hello, syzbot found the following crash on: HEAD commit: 5929a1f0ff30 Merge tag 'riscv-for-linus-4.20-rc2' of git:/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=137766a3400000 kernel config: https://syzkaller.appspot.com/x/.config?x=4a0a89f12ca9b0f5 dashboard link: https://syzkaller.appspot.com/bug?extid=6c0effb5877f6b0344e2 compiler: gcc (GCC) 8.0.1 20180413 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8479 Comm: syz-executor1 Not tainted 4.20.0-rc2+ #113 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27 Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 b4 bb 45 00 48 85 db 75 0f e8 7a ba 45 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 6b ba 45 00 <0f> 0b e8 64 ba 45 00 48 c7 c7 10 20 47 89 48 b8 00 00 00 00 00 fc RSP: 0018:ffff88815771f410 EFLAGS: 00010016 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc9000fc04000 RDX: 0000000000000119 RSI: ffffffff8139cd75 RDI: 0000000000000007 RBP: ffff88815771f428 R08: ffff888157a101c0 R09: ffffed103b5c5b67 R10: ffffed103b5c5b67 R11: ffff8881dae2db3b R12: 000040801396c000 R13: 0000000000000000 R14: 0000000000000010 R15: ffff88815771fab8 FS: 00007f52131d8700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000720f9c CR3: 00000001b5073000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: virt_to_head_page include/linux/mm.h:658 [inline] virt_to_cache mm/slab.c:399 [inline] kfree+0x7b/0x230 mm/slab.c:3813 vivid_vid_cap_s_selection+0x2c31/0x38e0 drivers/media/platform/vivid/vivid-vid-cap.c:1006 vidioc_s_selection+0xa4/0xc0 drivers/media/platform/vivid/vivid-core.c:352 v4l_s_selection+0xba/0x140 drivers/media/v4l2-core/v4l2-ioctl.c:2197 __video_do_ioctl+0x8b1/0x1050 drivers/media/v4l2-core/v4l2-ioctl.c:2853 video_usercopy+0x5c1/0x1760 drivers/media/v4l2-core/v4l2-ioctl.c:3035 video_ioctl2+0x2c/0x33 drivers/media/v4l2-core/v4l2-ioctl.c:3079 v4l2_ioctl+0x154/0x1b0 drivers/media/v4l2-core/v4l2-dev.c:364 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f52131d7c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 RDX: 0000000020000000 RSI: 00000000c040565f RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f52131d86d4 R13: 00000000004c1f77 R14: 00000000004d3090 R15: 00000000ffffffff Modules linked in: ---[ end trace df884aa85ab852c0 ]--- RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27 Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 b4 bb 45 00 48 85 db 75 0f e8 7a ba 45 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 6b ba 45 00 <0f> 0b e8 64 ba 45 00 48 c7 c7 10 20 47 89 48 b8 00 00 00 00 00 fc RSP: 0018:ffff88815771f410 EFLAGS: 00010016 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc9000fc04000 RDX: 0000000000000119 RSI: ffffffff8139cd75 RDI: 0000000000000007 RBP: ffff88815771f428 R08: ffff888157a101c0 R09: ffffed103b5c5b67 R10: ffffed103b5c5b67 R11: ffff8881dae2db3b R12: 000040801396c000 R13: 0000000000000000 R14: 0000000000000010 R15: ffff88815771fab8 FS: 00007f52131d8700(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000720f9c CR3: 00000001b5073000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 --- This bug 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 syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#bug-status-tracking for how to communicate with syzbot. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) 2018-11-16 23:32 kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) syzbot @ 2018-11-18 20:09 ` syzbot 2019-03-20 20:35 ` syzbot 1 sibling, 0 replies; 6+ messages in thread From: syzbot @ 2018-11-18 20:09 UTC (permalink / raw) To: hverkuil, linux-kernel, linux-media, mchehab, syzkaller-bugs syzbot has found a reproducer for the following crash on: HEAD commit: 1ce80e0fe98e Merge tag 'fsnotify_for_v4.20-rc3' of git://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10fd0893400000 kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 dashboard link: https://syzkaller.appspot.com/bug?extid=6c0effb5877f6b0344e2 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1312062b400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131bd093400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com audit: type=1800 audit(1542571519.564:30): pid=5852 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 ------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6007 Comm: syz-executor386 Not tainted 4.20.0-rc2+ #338 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27 Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 b4 bb 45 00 48 85 db 75 0f e8 7a ba 45 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 6b ba 45 00 <0f> 0b e8 64 ba 45 00 48 c7 c7 10 20 47 89 48 b8 00 00 00 00 00 fc RSP: 0018:ffff8881c3567410 EFLAGS: 00010093 RAX: ffff8881d32b4080 RBX: 0000000000000001 RCX: ffffffff8139cd5c RDX: 0000000000000000 RSI: ffffffff8139cd75 RDI: 0000000000000007 RBP: ffff8881c3567428 R08: ffff8881d32b4080 R09: ffffed103b5c5b67 R10: ffffed103b5c5b67 R11: ffff8881dae2db3b R12: 0000408005dd6000 R13: 0000000000000000 R14: 0000000000000010 R15: ffff8881c3567ab8 FS: 0000000001f9e880(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000203e8008 CR3: 00000001c24cd000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:658 [inline] virt_to_cache mm/slab.c:399 [inline] kfree+0x7b/0x230 mm/slab.c:3813 vivid_vid_cap_s_selection+0x2c31/0x38e0 drivers/media/platform/vivid/vivid-vid-cap.c:1006 vidioc_s_selection+0xa4/0xc0 drivers/media/platform/vivid/vivid-core.c:352 v4l_s_selection+0xba/0x140 drivers/media/v4l2-core/v4l2-ioctl.c:2197 __video_do_ioctl+0x8b1/0x1050 drivers/media/v4l2-core/v4l2-ioctl.c:2853 video_usercopy+0x5c1/0x1760 drivers/media/v4l2-core/v4l2-ioctl.c:3035 video_ioctl2+0x2c/0x33 drivers/media/v4l2-core/v4l2-ioctl.c:3079 v4l2_ioctl+0x154/0x1b0 drivers/media/v4l2-core/v4l2-dev.c:364 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4442c9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff0d831768 EFLAGS: 00000207 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 00000000004442c9 RDX: 0000000020000000 RSI: 00000000c040565f RDI: 0000000000000005 RBP: 00000000006ce018 R08: 00000000004002e0 R09: 00000000004002e0 R10: 0000000000000000 R11: 0000000000000207 R12: 0000000000401fd0 R13: 0000000000402060 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 57f6f02b74dd3e8e ]--- RIP: 0010:__phys_addr+0xb5/0x120 arch/x86/mm/physaddr.c:27 Code: 08 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 b4 bb 45 00 48 85 db 75 0f e8 7a ba 45 00 4c 89 e0 5b 41 5c 41 5d 5d c3 e8 6b ba 45 00 <0f> 0b e8 64 ba 45 00 48 c7 c7 10 20 47 89 48 b8 00 00 00 00 00 fc RSP: 0018:ffff8881c3567410 EFLAGS: 00010093 RAX: ffff8881d32b4080 RBX: 0000000000000001 RCX: ffffffff8139cd5c RDX: 0000000000000000 RSI: ffffffff8139cd75 RDI: 0000000000000007 RBP: ffff8881c3567428 R08: ffff8881d32b4080 R09: ffffed103b5c5b67 R10: ffffed103b5c5b67 R11: ffff8881dae2db3b R12: 0000408005dd6000 R13: 0000000000000000 R14: 0000000000000010 R15: ffff8881c3567ab8 FS: 0000000001f9e880(0000) GS:ffff8881dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000203e8008 CR3: 00000001c24cd000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) 2018-11-16 23:32 kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) syzbot 2018-11-18 20:09 ` syzbot @ 2019-03-20 20:35 ` syzbot 2019-04-04 14:47 ` Alexander Potapenko 1 sibling, 1 reply; 6+ messages in thread From: syzbot @ 2019-03-20 20:35 UTC (permalink / raw) To: davem, hverkuil, linux-can, linux-kernel, linux-media, mchehab, mchehab, mkl, netdev, socketcan, syzkaller-bugs syzbot has bisected this bug to: commit 6d469a202ee73196d0df76025af80bd6a379e658 Author: Mauro Carvalho Chehab <mchehab@s-opensource.com> Date: Sun May 14 17:07:21 2017 +0000 Merge tag 'v4.12-rc1' into patchwork bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12639fd7200000 start commit: 6d469a20 Merge tag 'v4.12-rc1' into patchwork git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=15639fd7200000 console output: https://syzkaller.appspot.com/x/log.txt?x=11639fd7200000 kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 dashboard link: https://syzkaller.appspot.com/bug?extid=6c0effb5877f6b0344e2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1312062b400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131bd093400000 Reported-by: syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com Fixes: 6d469a20 ("Merge tag 'v4.12-rc1' into patchwork") ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) 2019-03-20 20:35 ` syzbot @ 2019-04-04 14:47 ` Alexander Potapenko 2019-04-04 14:51 ` Hans Verkuil 0 siblings, 1 reply; 6+ messages in thread From: Alexander Potapenko @ 2019-04-04 14:47 UTC (permalink / raw) To: syzbot Cc: David Miller, hverkuil, linux-can, LKML, linux-media, mchehab, mchehab, mkl, Networking, socketcan, syzkaller-bugs On Wed, Mar 20, 2019 at 9:35 PM syzbot <syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com> wrote: > > syzbot has bisected this bug to: > > commit 6d469a202ee73196d0df76025af80bd6a379e658 > Author: Mauro Carvalho Chehab <mchehab@s-opensource.com> > Date: Sun May 14 17:07:21 2017 +0000 > > Merge tag 'v4.12-rc1' into patchwork > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12639fd7200000 > start commit: 6d469a20 Merge tag 'v4.12-rc1' into patchwork > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=15639fd7200000 > console output: https://syzkaller.appspot.com/x/log.txt?x=11639fd7200000 > kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 > dashboard link: https://syzkaller.appspot.com/bug?extid=6c0effb5877f6b0344e2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1312062b400000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131bd093400000 > > Reported-by: syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com > Fixes: 6d469a20 ("Merge tag 'v4.12-rc1' into patchwork") > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/000000000000462a4105848c8e12%40google.com. > For more options, visit https://groups.google.com/d/optout. I believe this bug is caused by vivid_vid_cap_s_selection() calling kfree(dev->bitmap_cap). This makes little sense, as dev->bitmap_cap seems to be allocated using vzalloc(). -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) 2019-04-04 14:47 ` Alexander Potapenko @ 2019-04-04 14:51 ` Hans Verkuil 2019-04-04 14:54 ` Alexander Potapenko 0 siblings, 1 reply; 6+ messages in thread From: Hans Verkuil @ 2019-04-04 14:51 UTC (permalink / raw) To: Alexander Potapenko, syzbot Cc: David Miller, linux-can, LKML, linux-media, mchehab, mchehab, mkl, Networking, socketcan, syzkaller-bugs On 4/4/19 4:47 PM, Alexander Potapenko wrote: > On Wed, Mar 20, 2019 at 9:35 PM syzbot > <syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com> wrote: >> >> syzbot has bisected this bug to: >> >> commit 6d469a202ee73196d0df76025af80bd6a379e658 >> Author: Mauro Carvalho Chehab <mchehab@s-opensource.com> >> Date: Sun May 14 17:07:21 2017 +0000 >> >> Merge tag 'v4.12-rc1' into patchwork >> >> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12639fd7200000 >> start commit: 6d469a20 Merge tag 'v4.12-rc1' into patchwork >> git tree: upstream >> final crash: https://syzkaller.appspot.com/x/report.txt?x=15639fd7200000 >> console output: https://syzkaller.appspot.com/x/log.txt?x=11639fd7200000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 >> dashboard link: https://syzkaller.appspot.com/bug?extid=6c0effb5877f6b0344e2 >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1312062b400000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131bd093400000 >> >> Reported-by: syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com >> Fixes: 6d469a20 ("Merge tag 'v4.12-rc1' into patchwork") >> >> -- >> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. >> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. >> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/000000000000462a4105848c8e12%40google.com. >> For more options, visit https://groups.google.com/d/optout. > > I believe this bug is caused by vivid_vid_cap_s_selection() calling > kfree(dev->bitmap_cap). > This makes little sense, as dev->bitmap_cap seems to be allocated > using vzalloc(). > Yup, that should be vfree. There was a similar problem with bitmap_out that I fixed, but it looks I missed this one. Can you make a patch? Thanks, Hans ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) 2019-04-04 14:51 ` Hans Verkuil @ 2019-04-04 14:54 ` Alexander Potapenko 0 siblings, 0 replies; 6+ messages in thread From: Alexander Potapenko @ 2019-04-04 14:54 UTC (permalink / raw) To: Hans Verkuil Cc: syzbot, David Miller, linux-can, LKML, linux-media, mchehab, mchehab, mkl, Networking, socketcan, syzkaller-bugs On Thu, Apr 4, 2019 at 4:51 PM Hans Verkuil <hverkuil@xs4all.nl> wrote: > > On 4/4/19 4:47 PM, Alexander Potapenko wrote: > > On Wed, Mar 20, 2019 at 9:35 PM syzbot > > <syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com> wrote: > >> > >> syzbot has bisected this bug to: > >> > >> commit 6d469a202ee73196d0df76025af80bd6a379e658 > >> Author: Mauro Carvalho Chehab <mchehab@s-opensource.com> > >> Date: Sun May 14 17:07:21 2017 +0000 > >> > >> Merge tag 'v4.12-rc1' into patchwork > >> > >> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12639fd7200000 > >> start commit: 6d469a20 Merge tag 'v4.12-rc1' into patchwork > >> git tree: upstream > >> final crash: https://syzkaller.appspot.com/x/report.txt?x=15639fd7200000 > >> console output: https://syzkaller.appspot.com/x/log.txt?x=11639fd7200000 > >> kernel config: https://syzkaller.appspot.com/x/.config?x=d86f24333880b605 > >> dashboard link: https://syzkaller.appspot.com/bug?extid=6c0effb5877f6b0344e2 > >> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1312062b400000 > >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131bd093400000 > >> > >> Reported-by: syzbot+6c0effb5877f6b0344e2@syzkaller.appspotmail.com > >> Fixes: 6d469a20 ("Merge tag 'v4.12-rc1' into patchwork") > >> > >> -- > >> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > >> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com. > >> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/000000000000462a4105848c8e12%40google.com. > >> For more options, visit https://groups.google.com/d/optout. > > > > I believe this bug is caused by vivid_vid_cap_s_selection() calling > > kfree(dev->bitmap_cap). > > This makes little sense, as dev->bitmap_cap seems to be allocated > > using vzalloc(). > > > > Yup, that should be vfree. There was a similar problem with bitmap_out that > I fixed, but it looks I missed this one. Can you make a patch? Yes, I've almost hit the send button :) > Thanks, > > Hans -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-04-04 14:54 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2018-11-16 23:32 kernel BUG at arch/x86/mm/physaddr.c:LINE! (2) syzbot 2018-11-18 20:09 ` syzbot 2019-03-20 20:35 ` syzbot 2019-04-04 14:47 ` Alexander Potapenko 2019-04-04 14:51 ` Hans Verkuil 2019-04-04 14:54 ` Alexander Potapenko
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