bisecting cause commit starting from b49976d8ef6448e86a7fda6a86f64867942b442d
building syzkaller on 8bc4594f832068a30c0eff44d468311780057d1f
testing commit b49976d8ef6448e86a7fda6a86f64867942b442d with gcc (GCC) 8.1.0
kernel signature: 32c56613640ba2df4b4e5fe69b239fcad66ecf4b39178508857c50e1cb5324ad
all runs: crashed: WARNING: refcount bug in io_submit_sqes
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 8.1.0
kernel signature: 934f0a134532bbbd345c7e8b605e59600f755e76ac937b8aa8fb348b839f419b
run #0: OK
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: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0
kernel signature: 8730770d68f8e920985126c577ec2dcb31f1816337898b7dcb97124240c2a41c
all runs: OK
# git bisect start bbf5c979011a099af5dc76498918ed7df445635b bcf876870b95592b52519ed4aafcf9d95999bc9c
Bisecting: 7841 revisions left to test after this (roughly 13 steps)
[47ec5303d73ea344e84f46660fff693c57641386] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
testing commit 47ec5303d73ea344e84f46660fff693c57641386 with gcc (GCC) 8.1.0
kernel signature: be74cfddc6034fc1afe831f18fc0c338afcb115920db0d6e55e1cbd86225f5fe
run #0: OK
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
# git bisect bad 47ec5303d73ea344e84f46660fff693c57641386
Bisecting: 4088 revisions left to test after this (roughly 12 steps)
[8f7be6291529011a58856bf178f52ed5751c68ac] Merge tag 'mmc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
testing commit 8f7be6291529011a58856bf178f52ed5751c68ac with gcc (GCC) 8.1.0
kernel signature: f7ccf4190b2e47ab5df469ccd8d4f19b6a2d6b5d2b2b20d424a70a0131623b03
run #0: OK
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
run #8: OK
run #9: OK
# git bisect bad 8f7be6291529011a58856bf178f52ed5751c68ac
Bisecting: 2031 revisions left to test after this (roughly 11 steps)
[822ef14e9dc73079c646d33aa77e2ac42361b39e] Merge tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
testing commit 822ef14e9dc73079c646d33aa77e2ac42361b39e with gcc (GCC) 8.1.0
kernel signature: 9a67ce7ec79e7ee8a6ed99b42150834f6d69e459e58a4f2505cf2e6a3acdf987
run #0: OK
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
run #8: OK
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
# git bisect bad 822ef14e9dc73079c646d33aa77e2ac42361b39e
Bisecting: 1032 revisions left to test after this (roughly 10 steps)
[e4cbce4d131753eca271d9d67f58c6377f27ad21] Merge tag 'sched-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
testing commit e4cbce4d131753eca271d9d67f58c6377f27ad21 with gcc (GCC) 8.1.0
kernel signature: 7ae762f4af78b104969201a0211c50a3890127a376bae8061d424decbbc61212
run #0: OK
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: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
# git bisect bad e4cbce4d131753eca271d9d67f58c6377f27ad21
Bisecting: 590 revisions left to test after this (roughly 9 steps)
[382625d0d4325fb14a29444eb8dce8dcc2eb9b51] Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block
testing commit 382625d0d4325fb14a29444eb8dce8dcc2eb9b51 with gcc (GCC) 8.1.0
kernel signature: 23c694b6f2aacef1db693a81c148d3d0d29f54da2307b3eda23464db6e2076a0
all runs: OK
# git bisect good 382625d0d4325fb14a29444eb8dce8dcc2eb9b51
Bisecting: 295 revisions left to test after this (roughly 8 steps)
[c8e69391d046a6acaa6a4cf72f9952ecd77d3085] Merge tag 'core-debugobjects-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
testing commit c8e69391d046a6acaa6a4cf72f9952ecd77d3085 with gcc (GCC) 8.1.0
kernel signature: 9c83600824312771ce3e140d293f64327a897a05a26caa07dc4872be2c11cf83
run #0: OK
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
run #9: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
# git bisect bad c8e69391d046a6acaa6a4cf72f9952ecd77d3085
Bisecting: 162 revisions left to test after this (roughly 7 steps)
[cdc8fcb49905c0b67e355e027cb462ee168ffaa3] Merge tag 'for-5.9/io_uring-20200802' of git://git.kernel.dk/linux-block
testing commit cdc8fcb49905c0b67e355e027cb462ee168ffaa3 with gcc (GCC) 8.1.0
kernel signature: 37abed11db6303d28e8cf6017e466be811a0db2f14396b66ef23b9711819f37d
run #0: OK
run #1: OK
run #2: OK
run #3: OK
run #4: OK
run #5: OK
run #6: OK
run #7: OK
run #8: crashed: BUG: unable to handle kernel NULL pointer dereference in __close_fd_get_file
run #9: OK
# git bisect bad cdc8fcb49905c0b67e355e027cb462ee168ffaa3
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[8eb06d7e8dd853d70668617dda57de4f6cebe651] io_uring: fix missing ->mm on exit
testing commit 8eb06d7e8dd853d70668617dda57de4f6cebe651 with gcc (GCC) 8.1.0
kernel signature: 4c75f741725e1c5b944c60a58cd9d9f171437d1d538427d00b0cb9deecdb3738
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 8eb06d7e8dd853d70668617dda57de4f6cebe651
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[a1a4661691c5f1a3af4c04f56ad68e2d1dbee3af] io_uring: kill REQ_F_TIMEOUT
testing commit a1a4661691c5f1a3af4c04f56ad68e2d1dbee3af with gcc (GCC) 8.1.0
kernel signature: faef307b0c2e67342c64e093ea2681631d3bd4bd5d0e07df5300172fee307f08
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip a1a4661691c5f1a3af4c04f56ad68e2d1dbee3af
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[8730f12b7962b21ea9ad2756abce1e205d22db84] btrfs: flag files as supporting buffered async reads
testing commit 8730f12b7962b21ea9ad2756abce1e205d22db84 with gcc (GCC) 8.1.0
kernel signature: 16526411ad908eb7f3336698a869817661ce4324a5e91dbebc69a66e4926aac7
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 8730f12b7962b21ea9ad2756abce1e205d22db84
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[ecfc51777487da4da530710e0b13de4c8cb4a6d2] io_uring: fix potential use after free on fallback request free
testing commit ecfc51777487da4da530710e0b13de4c8cb4a6d2 with gcc (GCC) 8.1.0
kernel signature: db81ac4ba26b61e9027e832cd55279232b772e58c3b9600f8973a4a36e4ca706
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip ecfc51777487da4da530710e0b13de4c8cb4a6d2
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[895aa7b1a0cc42de985b310478688138719bc293] Merge branch 'async-buffered.8' into for-5.9/io_uring
testing commit 895aa7b1a0cc42de985b310478688138719bc293 with gcc (GCC) 8.1.0
kernel signature: af406fe874bf96bb517d66c8237b65654fd105128bbc7caa22def114dadfe015
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 895aa7b1a0cc42de985b310478688138719bc293
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[351fd53595a3ceb88756a005e3b864f7c8cb86e4] io_uring: don't pass def into io_req_work_grab_env
testing commit 351fd53595a3ceb88756a005e3b864f7c8cb86e4 with gcc (GCC) 8.1.0
kernel signature: b837e0873a8798bd97e652c5262a423b0792e60dcb58d5e53bc3b442ed9cebb7
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 351fd53595a3ceb88756a005e3b864f7c8cb86e4
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[0e1b6fe3d1e5f1b79c5bec37881c98febfba7718] io_uring: free selected-bufs if error'ed
testing commit 0e1b6fe3d1e5f1b79c5bec37881c98febfba7718 with gcc (GCC) 8.1.0
kernel signature: a08946e622d729cd60e97a897dde0372307984473809fc406cc31981d6b64f49
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 0e1b6fe3d1e5f1b79c5bec37881c98febfba7718
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[debb85f496c9cc70663eac31d3ad9153839c844c] io_uring: factor out grab_env() from defer_prep()
testing commit debb85f496c9cc70663eac31d3ad9153839c844c with gcc (GCC) 8.1.0
kernel signature: d4beb165c74d392734151ea3abc03fe425da46b5349b40d4ce0650fe9612239c
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip debb85f496c9cc70663eac31d3ad9153839c844c
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[d3cac64c498c4fb2df46b97ee6f4c7d6d75f5e3d] io_uring: fix NULL-mm for linked reqs
testing commit d3cac64c498c4fb2df46b97ee6f4c7d6d75f5e3d with gcc (GCC) 8.1.0
kernel signature: 1afdfd66d43204fdf62c1676f2b83021dfe31cc83545c4463e54ca3865be8a48
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip d3cac64c498c4fb2df46b97ee6f4c7d6d75f5e3d
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[cbdcb4357c000861b77369c34e110fa893d23607] io_uring: do grab_env() just before punting
testing commit cbdcb4357c000861b77369c34e110fa893d23607 with gcc (GCC) 8.1.0
kernel signature: ab21ee08caf2a72c11746387dec8582d2bf58dc41d6ae3440cf8ef232e55190a
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip cbdcb4357c000861b77369c34e110fa893d23607
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[013538bd65fd3cdbf3ca8b0c99b962c70473c803] io_uring: add 'io_comp_state' to struct io_submit_state
testing commit 013538bd65fd3cdbf3ca8b0c99b962c70473c803 with gcc (GCC) 8.1.0
kernel signature: 26a1deaf2f56250156e84a71ab3b12c6f109414921775e4e071d6291df48ec92
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 013538bd65fd3cdbf3ca8b0c99b962c70473c803
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[652532ad459524d32c6bf1522e0b88d83b084d1a] io_uring: keep queue_sqe()'s fail path separately
testing commit 652532ad459524d32c6bf1522e0b88d83b084d1a with gcc (GCC) 8.1.0
kernel signature: 9eb9954b07275f0e58d45bc9476e559423308bea326991b78ff502d4b9ee1e46
run #0: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #1: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #2: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #3: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #4: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #5: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #6: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #7: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #8: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
run #9: boot failed: can't ssh into the instance
# git bisect skip 652532ad459524d32c6bf1522e0b88d83b084d1a
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[1c2da9e8839d6437b43f2c805411d1a0cbd70165] io_uring: remove empty cleanup of OP_OPEN* reqs
testing commit 1c2da9e8839d6437b43f2c805411d1a0cbd70165 with gcc (GCC) 8.1.0
kernel signature: 1d7843e6b516891d344e34e600d94449c5ed6f06d53a3fd0b0c2fbd97aa8a4a8
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 1c2da9e8839d6437b43f2c805411d1a0cbd70165
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[6df1db6b542436c6d429caa66e1045862fa36155] io_uring: fix mis-refcounting linked timeouts
testing commit 6df1db6b542436c6d429caa66e1045862fa36155 with gcc (GCC) 8.1.0
kernel signature: 62a0d5651b0d55079a2b1ea150a27ef21cd718013b7ae9fb73ad6b18cba9497b
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 6df1db6b542436c6d429caa66e1045862fa36155
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[0f7e466b393abab86be96ffcf00af383afddc0d1] io_uring: place cflags into completion data
testing commit 0f7e466b393abab86be96ffcf00af383afddc0d1 with gcc (GCC) 8.1.0
kernel signature: cf4d33050806a3931b6b8c2da66a28deaa2b32bf7e2d84b31faa7eb10f14581d
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 0f7e466b393abab86be96ffcf00af383afddc0d1
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[c2c4c83c58cbca23527fee93b49738a5a84272a1] io_uring: use new io_req_task_work_add() helper throughout
testing commit c2c4c83c58cbca23527fee93b49738a5a84272a1 with gcc (GCC) 8.1.0
kernel signature: 710229ef6762265843199201e2352ff0f9d2cb30d6d9d3f6a030edf72402f11f
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip c2c4c83c58cbca23527fee93b49738a5a84272a1
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[27dc8338e5fb0e0ed5b272e792f4ffad7f3bc03e] io_uring: use non-intrusive list for defer
testing commit 27dc8338e5fb0e0ed5b272e792f4ffad7f3bc03e with gcc (GCC) 8.1.0
kernel signature: 3884a777cb59d9a311d3f8d62a8f6f5cfa7b7ec47c5fabf5680f26d74a243a58
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 27dc8338e5fb0e0ed5b272e792f4ffad7f3bc03e
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[4c6e277c4cc4a6b3b2b9c66a7b014787ae757cc1] io_uring: abstract out task work running
testing commit 4c6e277c4cc4a6b3b2b9c66a7b014787ae757cc1 with gcc (GCC) 8.1.0
kernel signature: ec33e6b7498fc30d628c286750eeba32d12a2a369c45902d33c86727983be8b4
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 4c6e277c4cc4a6b3b2b9c66a7b014787ae757cc1
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[135fcde8496b03d31648171dbc038990112e41d5] io_uring: add req->timeout.list
testing commit 135fcde8496b03d31648171dbc038990112e41d5 with gcc (GCC) 8.1.0
kernel signature: df7bd4c6fdc2575d1e8560cf5365c9a4d3679db0577bb7d1718e3a6bbf25b41c
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 135fcde8496b03d31648171dbc038990112e41d5
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[58c6a581decbcdd7f49eb7cab27ee14cef247fd5] Merge branch 'io_uring-5.8' into for-5.9/io_uring
testing commit 58c6a581decbcdd7f49eb7cab27ee14cef247fd5 with gcc (GCC) 8.1.0
kernel signature: aff052e48f6f6f00c6fff28e576b760f739ad57b00ea1e53feaf696d9d7663f1
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 58c6a581decbcdd7f49eb7cab27ee14cef247fd5
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[d21ffe7eca82d47b489760899912f81e30456e2e] io_uring: use inflight_entry list for iopoll'ing
testing commit d21ffe7eca82d47b489760899912f81e30456e2e with gcc (GCC) 8.1.0
kernel signature: 20a03c6ad90fe2cc96fac09c8e70933f02aa6f2b498646f4851dcedc2091890c
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip d21ffe7eca82d47b489760899912f81e30456e2e
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[3fa5e0f331280237af918ab2e7a160f5a68d3e7d] io_uring: optimise io_req_find_next() fast check
testing commit 3fa5e0f331280237af918ab2e7a160f5a68d3e7d with gcc (GCC) 8.1.0
kernel signature: ee511948aca8dc9a987e1819dd00c63888388d330f3babc8adfe48563874ec87
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 3fa5e0f331280237af918ab2e7a160f5a68d3e7d
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[1bcb8c5d65a845e0ecb9e82237c399b29b8d15ea] io_uring: fix feeding io-wq with uninit reqs
testing commit 1bcb8c5d65a845e0ecb9e82237c399b29b8d15ea with gcc (GCC) 8.1.0
kernel signature: a0ff5de32968897586703a41d5f8eebf1afa5a0818b859c8db0bbbeff17a6967
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 1bcb8c5d65a845e0ecb9e82237c399b29b8d15ea
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[0be0b0e33b0bfd08264b108512e44b3907fe987b] io_uring: simplify io_async_task_func()
testing commit 0be0b0e33b0bfd08264b108512e44b3907fe987b with gcc (GCC) 8.1.0
kernel signature: 4a9e23762a5f3e024da8872d70044d888f2e6461d74f34bb7326777c6ee6444e
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 0be0b0e33b0bfd08264b108512e44b3907fe987b
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[710c2bfb66474a186b0196e3342d43db0e6c04e1] io_uring: fix missing io_grab_files()
testing commit 710c2bfb66474a186b0196e3342d43db0e6c04e1 with gcc (GCC) 8.1.0
kernel signature: 9dc22c03a361e77cafdcb122f3967597f8b96182bca7ce355087a43248727055
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 710c2bfb66474a186b0196e3342d43db0e6c04e1
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[a31eb4a2f1650fa578082ad9e9845487ecd90abe] io_uring: use EPOLLEXCLUSIVE flag to aoid thundering herd type behavior
testing commit a31eb4a2f1650fa578082ad9e9845487ecd90abe with gcc (GCC) 8.1.0
kernel signature: 83ec2bdeb1094565519f455f8b78cc1685339eda35dcfcb57aee78323605406f
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip a31eb4a2f1650fa578082ad9e9845487ecd90abe
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[e6543a816edca00b6b4c48625d142059d7211059] io_uring: remove inflight batching in free_many()
testing commit e6543a816edca00b6b4c48625d142059d7211059 with gcc (GCC) 8.1.0
kernel signature: 1d34ff15ffd7f6c0362518482fb5ed702f6399cff543a9e8058895f7aab9bfff
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip e6543a816edca00b6b4c48625d142059d7211059
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[01cec8c18f5ad9c27eee9f21439072832181039e] io_uring: get rid of atomic FAA for cq_timeouts
testing commit 01cec8c18f5ad9c27eee9f21439072832181039e with gcc (GCC) 8.1.0
kernel signature: d4b313892f7aa31c41c23e38a9ad7df8d6b8b363743997c2a010cfd68a03d3d9
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 01cec8c18f5ad9c27eee9f21439072832181039e
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[c3524383333e4ff2f720ab0c02b3a329f72de78b] io_uring: batch-free linked requests as well
testing commit c3524383333e4ff2f720ab0c02b3a329f72de78b with gcc (GCC) 8.1.0
kernel signature: 764e702dfca7d87ff9525a8e0aa26d8e0056e2822a6fe343053412ff5afe2dab
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip c3524383333e4ff2f720ab0c02b3a329f72de78b
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[b2bd1cf99f3e7c8fbf12ea07af2c6998e1209e25] io_uring: fix racy overflow count reporting
testing commit b2bd1cf99f3e7c8fbf12ea07af2c6998e1209e25 with gcc (GCC) 8.1.0
kernel signature: e902e39aedef0a30dbd113c486d1728c1469141429428ee7731a69e8d6547a18
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip b2bd1cf99f3e7c8fbf12ea07af2c6998e1209e25
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[1400e69705baf98d1c9cb73b592a3a68aab1d852] io_uring: use more specific type in rcv/snd msg cp
testing commit 1400e69705baf98d1c9cb73b592a3a68aab1d852 with gcc (GCC) 8.1.0
kernel signature: e12e7225ce757eb7a6ba67540dcbe6d611d4b604823bedcd9d1487268a7330bc
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 1400e69705baf98d1c9cb73b592a3a68aab1d852
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[010e8e6be2194678f7e4bb3044c088bbee779f57] io_uring: de-unionise io_kiocb
testing commit 010e8e6be2194678f7e4bb3044c088bbee779f57 with gcc (GCC) 8.1.0
kernel signature: 439db59c43c9bb4d641c3fa31fce03d5440665835c9606f4bab925d5a290266d
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 010e8e6be2194678f7e4bb3044c088bbee779f57
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[b36200f543ff07a1cb346aa582349141df2c8068] io_uring: fix sq array offset calculation
testing commit b36200f543ff07a1cb346aa582349141df2c8068 with gcc (GCC) 8.1.0
kernel signature: e40ce3a73785c8be24951cc015f0a82d5f2a7850e1458fe9452c452e53fe89a7
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip b36200f543ff07a1cb346aa582349141df2c8068
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[2e85abf053b99a6488f1b529d7aa3b8d7478adae] mm: allow read-ahead with IOCB_NOWAIT set
testing commit 2e85abf053b99a6488f1b529d7aa3b8d7478adae with gcc (GCC) 8.1.0
kernel signature: fe6c2dff3563e7f77f797ec9b4225b28a637cb1fb1874938a39e87bf4fffc5c9
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 2e85abf053b99a6488f1b529d7aa3b8d7478adae
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[3adfecaa647ff8afa4b6f5907193cf751a0f8351] io_uring: do task_work_run() during iopoll
testing commit 3adfecaa647ff8afa4b6f5907193cf751a0f8351 with gcc (GCC) 8.1.0
kernel signature: 4e4868be5a981dd5ec2717682f73983800d839231626edbcf63fdca757ad47a9
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 3adfecaa647ff8afa4b6f5907193cf751a0f8351
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[ae34817bd93e373a03203a4c6892735c430a14e1] io_uring: don't do opcode prep twice
testing commit ae34817bd93e373a03203a4c6892735c430a14e1 with gcc (GCC) 8.1.0
kernel signature: 1fb163f6ac77a598b419e52b91a7e21b4ced41e90f9748190955b5ce4a12cc6a
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip ae34817bd93e373a03203a4c6892735c430a14e1
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[fb49278624f75e15d36c3c43d322ca8961fb40e9] io_uring: fix missing wake_up io_rw_reissue()
testing commit fb49278624f75e15d36c3c43d322ca8961fb40e9 with gcc (GCC) 8.1.0
kernel signature: d0a6a6d5022eb43c2f18045947324562329e87d6aefec8925a80fbee847e29fa
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip fb49278624f75e15d36c3c43d322ca8961fb40e9
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[a304f0744824fd37d6e1aab4f9715f907724ad11] block: flag block devices as supporting IOCB_WAITQ
testing commit a304f0744824fd37d6e1aab4f9715f907724ad11 with gcc (GCC) 8.1.0
kernel signature: 89aff3029ca2d147a682494704c3119c49d9bdb9f43332b3acadd28a2106272c
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip a304f0744824fd37d6e1aab4f9715f907724ad11
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[7c86ffeeed303187f266ed17bd87a9b375955709] io_uring: deduplicate freeing linked timeouts
testing commit 7c86ffeeed303187f266ed17bd87a9b375955709 with gcc (GCC) 8.1.0
kernel signature: 57d5176e38d037d334ffec1ee972ae3c6b45337a37a9992cd3795066e9674f58
all runs: basic kernel testing failed: KASAN: use-after-free Write in afs_wake_up_async_call
# git bisect skip 7c86ffeeed303187f266ed17bd87a9b375955709
Bisecting: 65 revisions left to test after this (roughly 6 steps)
[cbcf72148da4af55ea81cfb351ea7c026ff1014f] io_uring: return locked and pinned page accounting
revisions tested: 49, total time: 8h8m22.951406964s (build: 4h32m37.68908666s, test: 3h32m43.944792708s)
error: bisection is taking too long (>8h0m0s), aborting