Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/08/02 | upstream (ToT) | c0ecd6388360 | C | [report] KASAN: slab-use-after-free Read in v4l2_fh_open |
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Date | Name | Commit | Repro | Result |
---|---|---|---|---|
2024/08/02 | upstream (ToT) | c0ecd6388360 | C | [report] KASAN: slab-use-after-free Read in v4l2_fh_open |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | KASAN: use-after-free Read in v4l2_fh_open usb media | C | unreliable | inconclusive | 276 | 18h44m | 1333d | 0/28 | upstream: reported C repro on 2021/02/15 15:18 |
linux-6.1 | KASAN: use-after-free Read in v4l2_fh_open | 3 | 36d | 49d | 0/3 | upstream: reported on 2024/08/22 03:36 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2024/09/06 00:23 | 1h29m | bisect fix | linux-5.15.y | OK (0) job log log |
================================================================== BUG: KASAN: use-after-free in v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] BUG: KASAN: use-after-free in v4l2_fh_open+0xc7/0x430 drivers/media/v4l2-core/v4l2-fh.c:63 Read of size 8 at addr ffff88801e86c900 by task v4l_id/4297 CPU: 0 PID: 4297 Comm: v4l_id Not tainted 5.15.164-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 v4l2_fh_init drivers/media/v4l2-core/v4l2-fh.c:25 [inline] v4l2_fh_open+0xc7/0x430 drivers/media/v4l2-core/v4l2-fh.c:63 em28xx_v4l2_open+0x15d/0xa10 drivers/media/usb/em28xx/em28xx-video.c:2163 v4l2_open+0x228/0x360 drivers/media/v4l2-core/v4l2-dev.c:427 chrdev_open+0x54a/0x630 fs/char_dev.c:414 do_dentry_open+0x807/0xfb0 fs/open.c:826 do_open fs/namei.c:3608 [inline] path_openat+0x2705/0x2f20 fs/namei.c:3742 do_filp_open+0x21c/0x460 fs/namei.c:3769 do_sys_openat2+0x13b/0x4f0 fs/open.c:1253 do_sys_open fs/open.c:1269 [inline] __do_sys_openat fs/open.c:1285 [inline] __se_sys_openat fs/open.c:1280 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1280 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f9217b8c9a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffea9756f90 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffea97571a8 RCX: 00007f9217b8c9a4 RDX: 0000000000000000 RSI: 00007ffea9757f22 RDI: 00000000ffffff9c RBP: 00007ffea9757f22 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea97571c0 R14: 000056380b8b4670 R15: 00007f9217fd5a80 </TASK> The buggy address belongs to the page: page:ffffea00007a1b00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1e86c head:ffffea00007a1b00 order:2 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010000(head|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000010000 0000000000000000 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), pid 3582, ts 105608959675, free_ts 105589982278 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x322a/0x33c0 mm/page_alloc.c:4159 __alloc_pages+0x272/0x700 mm/page_alloc.c:5423 kmalloc_order+0x41/0x150 mm/slab_common.c:966 kmalloc_order_trace+0x15/0xe0 mm/slab_common.c:982 kmalloc_large include/linux/slab.h:520 [inline] kmalloc include/linux/slab.h:584 [inline] kzalloc include/linux/slab.h:721 [inline] em28xx_v4l2_init+0xe2/0x2d50 drivers/media/usb/em28xx/em28xx-video.c:2542 em28xx_init_extension+0x11b/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1126 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 process_scheduled_works kernel/workqueue.c:2373 [inline] worker_thread+0xd83/0x1280 kernel/workqueue.c:2462 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 free_nonslab_page+0xe4/0x150 mm/slub.c:3535 kfree+0x1cf/0x270 mm/slub.c:4556 em28xx_free_v4l2 drivers/media/usb/em28xx/em28xx-video.c:2128 [inline] kref_put include/linux/kref.h:65 [inline] em28xx_v4l2_init+0x15d7/0x2d50 drivers/media/usb/em28xx/em28xx-video.c:2911 em28xx_init_extension+0x11b/0x1c0 drivers/media/usb/em28xx/em28xx-core.c:1126 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 process_scheduled_works kernel/workqueue.c:2373 [inline] worker_thread+0xd83/0x1280 kernel/workqueue.c:2462 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Memory state around the buggy address: ffff88801e86c800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88801e86c880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88801e86c900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff88801e86c980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88801e86ca00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/02 07:45 | linux-5.15.y | 7e89efd3ae1c | 1e9c4cf3 | .config | console log | report | syz / log | C | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | |
2024/10/10 02:21 | linux-5.15.y | 3a5928702e71 | 0278d004 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/10/10 02:21 | linux-5.15.y | 3a5928702e71 | 0278d004 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/10/02 04:33 | linux-5.15.y | 3a5928702e71 | ea2b66a6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/10/02 04:17 | linux-5.15.y | 3a5928702e71 | ea2b66a6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/10/01 11:24 | linux-5.15.y | 3a5928702e71 | ea2b66a6 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/09/20 13:14 | linux-5.15.y | 3a5928702e71 | 6f888b75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/09/20 05:33 | linux-5.15.y | 3a5928702e71 | 6f888b75 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/09/19 11:05 | linux-5.15.y | 3a5928702e71 | c673ca06 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/09/15 06:15 | linux-5.15.y | 3a5928702e71 | 08d8a733 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/09/09 12:13 | linux-5.15.y | 14e468424d3e | 073f8be2 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/09/07 04:59 | linux-5.15.y | 14e468424d3e | 9750182a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/08/02 06:14 | linux-5.15.y | 7e89efd3ae1c | 1e9c4cf3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open | ||
2024/08/01 11:00 | linux-5.15.y | 7e89efd3ae1c | 1e9c4cf3 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-linux-5-15-kasan | KASAN: use-after-free Read in v4l2_fh_open |