bisecting cause commit starting from abdfd52a295fb5731ab07b5c9013e2e39f4d1cbe building syzkaller on 1656845f45f284c574eb4f8bfe85dd7916a47a3a testing commit abdfd52a295fb5731ab07b5c9013e2e39f4d1cbe with gcc (GCC) 8.1.0 all runs: crashed: memory leak in v9fs_session_init testing release v5.2 testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 with gcc (GCC) 8.1.0 all runs: crashed: memory leak in v9fs_session_init testing release v5.1 testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd with gcc (GCC) 8.1.0 all runs: crashed: memory leak in v9fs_session_init testing release v5.0 testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 with gcc (GCC) 8.1.0 run #0: crashed: memory leak in batadv_tvlv_handler_register run #1: crashed: memory leak in batadv_tvlv_handler_register run #2: crashed: memory leak in batadv_tvlv_handler_register run #3: crashed: memory leak in batadv_tvlv_handler_register run #4: crashed: memory leak in batadv_tvlv_handler_register run #5: crashed: memory leak in batadv_tvlv_handler_register run #6: crashed: memory leak in hsr_add_port run #7: crashed: memory leak in batadv_tvlv_handler_register run #8: crashed: memory leak in batadv_tvlv_handler_register run #9: crashed: memory leak in batadv_tvlv_handler_register testing release v4.20 testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be with gcc (GCC) 8.1.0 run #0: crashed: memory leak in hsr_add_port run #1: crashed: memory leak in batadv_tvlv_handler_register run #2: crashed: memory leak in batadv_tvlv_handler_register run #3: crashed: memory leak in batadv_tvlv_handler_register run #4: crashed: memory leak in batadv_tvlv_handler_register run #5: crashed: memory leak in batadv_tvlv_handler_register run #6: crashed: memory leak in batadv_tvlv_handler_register run #7: crashed: memory leak in hsr_add_port run #8: crashed: memory leak in batadv_tvlv_handler_register run #9: crashed: memory leak in batadv_tvlv_handler_register testing release v4.19 testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d with gcc (GCC) 8.1.0 run #0: crashed: memory leak in v9fs_session_init run #1: crashed: memory leak in v9fs_session_init run #2: crashed: memory leak in v9fs_session_init run #3: crashed: memory leak in v9fs_session_init run #4: crashed: memory leak in __neigh_create run #5: crashed: memory leak in v9fs_session_init run #6: crashed: memory leak in v9fs_session_init run #7: crashed: memory leak in v9fs_session_init run #8: crashed: memory leak in __neigh_create run #9: crashed: memory leak in __neigh_create testing release v4.18 testing commit 94710cac0ef4ee177a63b5227664b38c95bbf703 with gcc (GCC) 8.1.0 all runs: crashed: memory leak in corrupted testing release v4.17 testing commit 29dcea88779c856c7dc92040a0c01233263101d4 with gcc (GCC) 8.1.0 all runs: crashed: memory leak in corrupted testing release v4.16 testing commit 0adb32858b0bddf4ada5f364a84ed60b196dbcda with gcc (GCC) 8.1.0 all runs: crashed: memory leak in __neigh_create testing release v4.15 testing commit d8a5b80568a9cb66810e75b182018e9edb68e8ff with gcc (GCC) 8.1.0 all runs: crashed: memory leak in __neigh_create testing release v4.14 testing commit bebc6082da0a9f5d47a1ea2edc099bf671058bd4 with gcc (GCC) 8.1.0 all runs: crashed: memory leak in __neigh_create testing release v4.13 testing commit 569dbb88e80deb68974ef6fdd6a13edb9d686261 with gcc (GCC) 8.1.0 run #0: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #1: crashed: WARNING: kernel stack regs has bad 'bp' value run #2: crashed: WARNING: kernel stack regs has bad 'bp' value run #3: crashed: WARNING: kernel stack regs has bad 'bp' value run #4: crashed: WARNING: kernel stack regs has bad 'bp' value run #5: crashed: memory leak in __neigh_create run #6: crashed: memory leak in __neigh_create run #7: crashed: WARNING: kernel stack regs has bad 'bp' value run #8: crashed: WARNING: kernel stack regs has bad 'bp' value run #9: crashed: WARNING: kernel stack regs has bad 'bp' value testing release v4.12 testing commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c with gcc (GCC) 8.1.0 run #0: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #1: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #2: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #3: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #4: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #5: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #6: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #7: crashed: memory leak in copy_process run #8: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value run #9: basic kernel testing failed: WARNING: kernel stack regs has bad 'bp' value testing release v4.11 testing commit a351e9b9fc24e982ec2f0e76379a49826036da12 with gcc (GCC) 7.3.0 all runs: crashed: memory leak in copy_process testing release v4.10 testing commit c470abd4fde40ea6a0846a2beab642a578c0b8cd with gcc (GCC) 5.5.0 all runs: crashed: memory leak in copy_process testing release v4.9 testing commit 69973b830859bc6529a7a0468ba0d80ee5117826 with gcc (GCC) 5.5.0 all runs: crashed: memory leak in copy_process testing release v4.8 testing commit c8d2bc9bc39ebea8437fd974fdbc21847bb897a3 with gcc (GCC) 5.5.0 run #0: crashed: memory leak in batadv_tvlv_handler_register run #1: crashed: memory leak in batadv_tvlv_handler_register run #2: crashed: memory leak in batadv_tvlv_handler_register run #3: crashed: memory leak in batadv_tvlv_handler_register run #4: crashed: memory leak in batadv_tvlv_handler_register run #5: crashed: memory leak in batadv_tvlv_handler_register run #6: OK run #7: OK run #8: crashed: memory leak in batadv_tvlv_handler_register run #9: crashed: memory leak in batadv_tvlv_handler_register testing release v4.7 testing commit 523d939ef98fd712632d93a5a2b588e477a7565e with gcc (GCC) 5.5.0 run #0: crashed: memory leak in batadv_tvlv_handler_register run #1: crashed: memory leak in batadv_tvlv_handler_register run #2: crashed: memory leak in batadv_tvlv_handler_register run #3: OK run #4: crashed: memory leak in batadv_tvlv_handler_register run #5: crashed: memory leak in batadv_tvlv_handler_register run #6: OK run #7: crashed: memory leak in batadv_tvlv_handler_register run #8: crashed: memory leak in batadv_tvlv_handler_register run #9: crashed: memory leak in batadv_tvlv_handler_register testing release v4.6 testing commit 2dcd0af568b0cf583645c8a317dd12e344b1c72a with gcc (GCC) 5.5.0 all runs: OK # git bisect start v4.7 v4.6 Bisecting: 6716 revisions left to test after this (roughly 13 steps) [0694f0c9e20c47063e4237e5f6649ae5ce5a369a] radix tree test suite: remove dependencies on height testing commit 0694f0c9e20c47063e4237e5f6649ae5ce5a369a with gcc (GCC) 5.5.0 run #0: crashed: memory leak in next_bio run #1: crashed: memory leak in next_bio run #2: crashed: memory leak in next_bio run #3: crashed: memory leak in next_bio run #4: crashed: memory leak in next_bio run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 0694f0c9e20c47063e4237e5f6649ae5ce5a369a Bisecting: 3281 revisions left to test after this (roughly 12 steps) [a7fd20d1c476af4563e66865213474a2f9f473a4] Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next testing commit a7fd20d1c476af4563e66865213474a2f9f473a4 with gcc (GCC) 5.5.0 run #0: crashed: memory leak in next_bio run #1: crashed: memory leak in next_bio run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad a7fd20d1c476af4563e66865213474a2f9f473a4 Bisecting: 1716 revisions left to test after this (roughly 11 steps) [9dc0b289c4c09bc1a92bdcc055cb37af9b72eb28] net/mlx5_core: Firmware commands to support flow counters testing commit 9dc0b289c4c09bc1a92bdcc055cb37af9b72eb28 with gcc (GCC) 5.5.0 run #0: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor242042348" "root@10.128.10.23:./syz-executor242042348"]: exit status 1 ssh: connect to host 10.128.10.23 port 22: Connection timed out lost connection run #1: OK run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect good 9dc0b289c4c09bc1a92bdcc055cb37af9b72eb28 Bisecting: 859 revisions left to test after this (roughly 10 steps) [fdb8a291227338fe54a2a790dae457726e5c237b] Merge tag 'hwmon-for-linus-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging testing commit fdb8a291227338fe54a2a790dae457726e5c237b with gcc (GCC) 5.5.0 all runs: OK # git bisect good fdb8a291227338fe54a2a790dae457726e5c237b Bisecting: 438 revisions left to test after this (roughly 9 steps) [16490980e396fac079248b23b1dd81e7d48bebf3] Merge tag 'device-properties-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm testing commit 16490980e396fac079248b23b1dd81e7d48bebf3 with gcc (GCC) 5.5.0 run #0: crashed: memory leak in v9fs_session_init run #1: basic kernel testing failed: failed to copy test binary to VM: failed to run ["scp" "-P" "22" "-F" "/dev/null" "-o" "UserKnownHostsFile=/dev/null" "-o" "BatchMode=yes" "-o" "IdentitiesOnly=yes" "-o" "StrictHostKeyChecking=no" "-o" "ConnectTimeout=10" "-i" "/syzkaller/jobs/linux/workdir/image/key" "/tmp/syz-executor515827938" "root@10.128.1.33:./syz-executor515827938"]: exit status 1 ssh: connect to host 10.128.1.33 port 22: Connection timed out lost connection run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 16490980e396fac079248b23b1dd81e7d48bebf3 Bisecting: 222 revisions left to test after this (roughly 8 steps) [3e21e5dda4907ecb21a124517ab0eb1d176e5231] Merge tag 'mmc-v4.7' of git://git.linaro.org/people/ulf.hansson/mmc testing commit 3e21e5dda4907ecb21a124517ab0eb1d176e5231 with gcc (GCC) 5.5.0 all runs: OK # git bisect good 3e21e5dda4907ecb21a124517ab0eb1d176e5231 Bisecting: 110 revisions left to test after this (roughly 7 steps) [7777c2785b4ae5bfbef1c9f7dd4a08660541cb45] Merge branch 'pm-devfreq' testing commit 7777c2785b4ae5bfbef1c9f7dd4a08660541cb45 with gcc (GCC) 5.5.0 all runs: OK # git bisect good 7777c2785b4ae5bfbef1c9f7dd4a08660541cb45 Bisecting: 52 revisions left to test after this (roughly 6 steps) [a6becfbaba801ccac4ca2708e4689a9ef013b080] Merge branches 'acpi-drivers', 'acpi-pm', 'acpi-ec' and 'acpi-video' testing commit a6becfbaba801ccac4ca2708e4689a9ef013b080 with gcc (GCC) 5.5.0 all runs: OK # git bisect good a6becfbaba801ccac4ca2708e4689a9ef013b080 Bisecting: 23 revisions left to test after this (roughly 5 steps) [fc723957801465c4a911d0a509709f0f8b91aa8a] Merge branches 'acpi-pci', 'acpi-misc' and 'acpi-tools' testing commit fc723957801465c4a911d0a509709f0f8b91aa8a with gcc (GCC) 5.5.0 all runs: OK # git bisect good fc723957801465c4a911d0a509709f0f8b91aa8a Bisecting: 14 revisions left to test after this (roughly 4 steps) [aa24781b1cbd62cc7e7d2f1964bfd5727388bf3e] Merge branches 'pm-core' and 'pm-domains' testing commit aa24781b1cbd62cc7e7d2f1964bfd5727388bf3e with gcc (GCC) 5.5.0 all runs: OK # git bisect good aa24781b1cbd62cc7e7d2f1964bfd5727388bf3e Bisecting: 8 revisions left to test after this (roughly 3 steps) [0b81561c1d30bb44e65d3725042e27b548bb1a86] cpupower: fix potential memory leak testing commit 0b81561c1d30bb44e65d3725042e27b548bb1a86 with gcc (GCC) 5.5.0 all runs: OK # git bisect good 0b81561c1d30bb44e65d3725042e27b548bb1a86 Bisecting: 4 revisions left to test after this (roughly 2 steps) [27c4a1c5ef61b6d4a9aeae68b24419b4319b97ed] Merge branches 'pm-avs', 'pm-clk', 'powercap' and 'pm-tools' testing commit 27c4a1c5ef61b6d4a9aeae68b24419b4319b97ed with gcc (GCC) 5.5.0 all runs: OK # git bisect good 27c4a1c5ef61b6d4a9aeae68b24419b4319b97ed Bisecting: 2 revisions left to test after this (roughly 1 step) [dab2e29402f40431d2199e6faff48174204d2d06] Merge back new device properties material for v4.7. testing commit dab2e29402f40431d2199e6faff48174204d2d06 with gcc (GCC) 5.5.0 all runs: OK # git bisect good dab2e29402f40431d2199e6faff48174204d2d06 Bisecting: 0 revisions left to test after this (roughly 1 step) [46c13450624e36302547a2ac3695f2350fe7ffc3] Merge tag 'acpi-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm testing commit 46c13450624e36302547a2ac3695f2350fe7ffc3 with gcc (GCC) 5.5.0 all runs: OK # git bisect good 46c13450624e36302547a2ac3695f2350fe7ffc3 16490980e396fac079248b23b1dd81e7d48bebf3 is the first bad commit revisions tested: 33, total time: 7h19m24.693331936s (build: 1h53m50.385977791s, test: 5h17m33.439112639s) first bad commit: 16490980e396fac079248b23b1dd81e7d48bebf3 Merge tag 'device-properties-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm cc: ["torvalds@linux-foundation.org"] crash: memory leak in v9fs_session_init 2019/07/25 14:06:18 executed programs: 51 2019/07/25 14:06:23 executed programs: 60 2019/07/25 14:06:29 executed programs: 80 2019/07/25 14:06:35 executed programs: 93 BUG: memory leak unreferenced object 0xffff8800aa495540 (size 32): comm "syz-executor.0", pid 6484, jiffies 4294952361 (age 12.950s) hex dump (first 32 bytes): 77 66 64 6e 6f 25 61 63 63 65 73 73 3d 75 73 65 wfdno%access=use 72 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 r............... backtrace: [] kmemleak_alloc+0x23/0x40 mm/kmemleak.c:913 [] kmemleak_alloc_recursive include/linux/kmemleak.h:47 [inline] [] slab_post_alloc_hook mm/slab.h:406 [inline] [] slab_alloc mm/slab.c:3232 [inline] [] __do_kmalloc mm/slab.c:3543 [inline] [] __kmalloc+0x1f3/0x2d0 mm/slab.c:3554 [] kmalloc include/linux/slab.h:483 [inline] [] match_strdup+0x24/0x50 lib/parser.c:284 [] v9fs_parse_options fs/9p/v9fs.c:232 [inline] [] v9fs_session_init+0x227/0x6a0 fs/9p/v9fs.c:359 [] v9fs_mount+0x53/0x300 fs/9p/vfs_super.c:130 [] mount_fs+0x33/0x160 fs/super.c:1122 [] vfs_kern_mount+0x62/0x100 fs/namespace.c:948 [] do_new_mount fs/namespace.c:2417 [inline] [] do_mount+0x229/0xdc0 fs/namespace.c:2734 [] SYSC_mount fs/namespace.c:2925 [inline] [] SyS_mount+0x90/0xd0 fs/namespace.c:2902 [] entry_SYSCALL_64_fastpath+0x1e/0xa8 [] 0xffffffffffffffff