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| Title | Replies (including bot) | Last reply |
|---|---|---|
| [PATCH AUTOSEL 6.1 01/93] hv_netvsc: Allocate memory in netvsc_dma_map() with GFP_ATOMIC | 3 (3) | 2023/02/15 07:04 |
| [PATCH] btrfs: zlib: zero-initialize zlib workspace | 2 (2) | 2023/01/24 16:59 |
| Re: [syzbot] KMSAN: uninit-value in longest_match | 2 (2) | 2023/01/24 11:07 |
| Re: [syzbot] KMSAN: uninit-value in longest_match | 1 (1) | 2022/12/14 14:16 |
| [syzbot] KMSAN: uninit-value in longest_match | 1 (2) | 2022/12/13 06:40 |
===================================================== BUG: KMSAN: uninit-value in longest_match+0xc88/0x1220 lib/zlib_deflate/deflate.c:668 longest_match+0xc88/0x1220 lib/zlib_deflate/deflate.c:668 deflate_fast+0x1838/0x2280 lib/zlib_deflate/deflate.c:954 zlib_deflate+0x1783/0x22b0 lib/zlib_deflate/deflate.c:410 zlib_compress_pages+0xd34/0x1f90 fs/btrfs/zlib.c:178 compression_compress_pages fs/btrfs/compression.c:77 [inline] btrfs_compress_pages+0x325/0x440 fs/btrfs/compression.c:1208 compress_file_range+0x11ac/0x3510 fs/btrfs/inode.c:730 async_cow_start+0x33/0xd0 fs/btrfs/inode.c:1458 btrfs_work_helper+0x55a/0x990 fs/btrfs/async-thread.c:280 process_one_work+0xb27/0x13e0 kernel/workqueue.c:2289 worker_thread+0x1076/0x1d60 kernel/workqueue.c:2436 kthread+0x31b/0x430 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Uninit was created at: __kmalloc_large_node+0x2f7/0x3a0 mm/slab_common.c:1106 __do_kmalloc_node mm/slab_common.c:943 [inline] __kmalloc_node+0x1d2/0x3c0 mm/slab_common.c:962 kmalloc_node include/linux/slab.h:579 [inline] kvmalloc_node+0xbc/0x2d0 mm/util.c:581 kvmalloc include/linux/slab.h:706 [inline] zlib_alloc_workspace+0x111/0x5e0 fs/btrfs/zlib.c:66 alloc_workspace+0x329/0x5a0 fs/btrfs/compression.c:939 btrfs_init_workspace_manager+0x11f/0x4d0 fs/btrfs/compression.c:982 btrfs_init_compress+0x1f/0x30 fs/btrfs/compression.c:1249 init_btrfs_fs+0x94/0x5f2 fs/btrfs/super.c:2736 do_one_initcall+0x221/0x860 init/main.c:1303 do_initcall_level+0x146/0x322 init/main.c:1376 do_initcalls+0x11a/0x201 init/main.c:1392 do_basic_setup+0x22/0x24 init/main.c:1411 kernel_init_freeable+0x308/0x4d0 init/main.c:1631 kernel_init+0x2b/0x7d0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 CPU: 0 PID: 39 Comm: kworker/u4:2 Not tainted 6.1.0-syzkaller-64311-g5c6259d6d19f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: btrfs-delalloc btrfs_work_helper =====================================================
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2022/12/14 05:40 | https://github.com/google/kmsan.git master | 5c6259d6d19f | e660de91 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in longest_match | |||
| 2022/12/09 20:07 | https://github.com/google/kmsan.git master | 30d2727189c5 | 67be1ae7 | .config | console log | report | info | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in longest_match | |||
| 2022/12/09 06:54 | https://github.com/google/kmsan.git master | 30d2727189c5 | 1034e5fa | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in longest_match | ||
| 2022/12/09 08:13 | https://github.com/google/kmsan.git master | 30d2727189c5 | 1034e5fa | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci-upstream-kmsan-gce-386 | KMSAN: uninit-value in zlib_tr_flush_block |