bisecting cause commit starting from 47142ed6c34d544ae9f0463e58d482289cbe0d46 building syzkaller on 429d8a6becba0a60e99331e293e6117597e9e530 testing commit 47142ed6c34d544ae9f0463e58d482289cbe0d46 with gcc (GCC) 10.2.1 20210217 kernel signature: 0f6ec9bd6ea4d60971de63c0a70867dcab942d630f197ee01640f6ac6627c5e0 run #0: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #1: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #2: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #3: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #4: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #5: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #6: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #7: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #8: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #9: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #10: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #11: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #12: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #13: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #14: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #15: crashed: WARNING in kvm_wait run #16: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #17: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs run #18: boot failed: WARNING in kvm_wait run #19: boot failed: WARNING in kvm_wait testing release v5.11 testing commit f40ddce88593482919761f74910f42f4b84c004b with gcc (GCC) 10.2.1 20210217 kernel signature: 1b39ece6c114dcf3dc22df5b446ca8181a6e81142b68d7d80f219bc196bda5d1 all runs: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs testing release v5.10 testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 with gcc (GCC) 10.2.1 20210217 kernel signature: 5a38f43f8ec2e10b6025e64d0f8e5c1205138012faed3d3588a2936288ab00bc all runs: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs testing release v5.9 testing commit bbf5c979011a099af5dc76498918ed7df445635b with gcc (GCC) 10.2.1 20210217 kernel signature: c4a2843645fbc845a17a2fd41169bbcfa3a13169c37f44efde87ddc0503ee01c all runs: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.4.1 20210217 kernel signature: b5c2c131eb880764bb0d7984b5416861276d9d3887524b2504a69973b58532cb all runs: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs testing release v5.7 testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 with gcc (GCC) 8.4.1 20210217 kernel signature: d47e76082c6c49355f1f09d0253a79c94d2506b2405bec9bb6dd608a2c2158d8 all runs: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs testing release v5.6 testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 with gcc (GCC) 8.4.1 20210217 kernel signature: 1788c148f53876912388040a7b8b47c207f06e1a1136c54b425a8be487c2fdb1 all runs: OK # git bisect start 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 7111951b8d4973bda27ff663f2cf18b663d15b48 Bisecting: 7542 revisions left to test after this (roughly 13 steps) [50a5de895dbe5df947b3a695777db5b2c313e065] Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma testing commit 50a5de895dbe5df947b3a695777db5b2c313e065 with gcc (GCC) 8.4.1 20210217 kernel signature: ff15adea9cf4b37d58b9297eaa9fce0d1b3b8a8e1e2ea81e86559c4a27e550cc all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 50a5de895dbe5df947b3a695777db5b2c313e065 Bisecting: 7542 revisions left to test after this (roughly 13 steps) [422c032afcf57d5e8109a54912e22ffc53d99068] netfilter: flowtable: Use rw sem as flow block lock testing commit 422c032afcf57d5e8109a54912e22ffc53d99068 with gcc (GCC) 8.4.1 20210217 kernel signature: 8b5562f77d0f11212923d6eb5c10e90c6b9e990c046c9cd400ac8f7ef28b4857 all runs: OK # git bisect good 422c032afcf57d5e8109a54912e22ffc53d99068 Bisecting: 6728 revisions left to test after this (roughly 13 steps) [8c1b724ddb218f221612d4c649bc9c7819d8d7a6] Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm testing commit 8c1b724ddb218f221612d4c649bc9c7819d8d7a6 with gcc (GCC) 8.4.1 20210217 kernel signature: dcf3118b37fdb6af582a1f133adb06179b4a4bce919f987dc42e072a9a2e5b9e all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 8c1b724ddb218f221612d4c649bc9c7819d8d7a6 Bisecting: 6728 revisions left to test after this (roughly 13 steps) [88d7fcfa3b1fe670f0412b95be785aafca63352b] net: inet_csk: Fix so_reuseport bind-address cache in tb->fast* testing commit 88d7fcfa3b1fe670f0412b95be785aafca63352b with gcc (GCC) 8.4.1 20210217 kernel signature: 7158dfbd36ca585c408b7a1db0cb77948492c6eb6671024f4a5dcf8b16980d36 all runs: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs # git bisect bad 88d7fcfa3b1fe670f0412b95be785aafca63352b Bisecting: 6383 revisions left to test after this (roughly 13 steps) [6cad420cc695867b4ca710bac21fde21a4102e4b] Merge branch 'akpm' (patches from Andrew) testing commit 6cad420cc695867b4ca710bac21fde21a4102e4b with gcc (GCC) 8.4.1 20210217 kernel signature: c9e75af314a0682eccd71ad3776ddde9ba809c52e9ad3161ca861b1dc3652b61 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 6cad420cc695867b4ca710bac21fde21a4102e4b Bisecting: 6383 revisions left to test after this (roughly 13 steps) [77a36a3ab4ff17fad23831192e3694a3c5a1750d] HID: Add driver fixing Glorious PC Gaming Race mouse report descriptor testing commit 77a36a3ab4ff17fad23831192e3694a3c5a1750d with gcc (GCC) 8.4.1 20210217 kernel signature: 5baebf6e94f68e121ad1ded188435de7cc25b90defa382f096c0fa06c996905d all runs: OK # git bisect good 77a36a3ab4ff17fad23831192e3694a3c5a1750d Bisecting: 6383 revisions left to test after this (roughly 13 steps) [8ec91c0fce1500306a858d0c35d1383fd9eb6ba6] Merge tag 'gpio-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio testing commit 8ec91c0fce1500306a858d0c35d1383fd9eb6ba6 with gcc (GCC) 8.4.1 20210217 kernel signature: 9bde560c6224afb1fc3253f17ececb07a62124ca109565257c3d5fcefb64d64c all runs: crashed: KASAN: use-after-free Read in firmware_fallback_sysfs # git bisect bad 8ec91c0fce1500306a858d0c35d1383fd9eb6ba6 Bisecting: 6337 revisions left to test after this (roughly 13 steps) [7be97138e7276c71cc9ad1752dcb502d28f4400d] Merge tag 'xfs-5.7-merge-8' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux testing commit 7be97138e7276c71cc9ad1752dcb502d28f4400d with gcc (GCC) 8.4.1 20210217 kernel signature: c74d66cabe29d3e9c027b65ad05e4cd9d36e928aeaf63ff339f1038e150f7966 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 7be97138e7276c71cc9ad1752dcb502d28f4400d Bisecting: 6337 revisions left to test after this (roughly 13 steps) [f5637d3b42ab0465ef71d5fb8461bce97fba95e8] mm/memory_hotplug: rename mhp_restrictions to mhp_params testing commit f5637d3b42ab0465ef71d5fb8461bce97fba95e8 with gcc (GCC) 8.4.1 20210217 kernel signature: 528e30bccf0d0358e304af55e244e08e66bcd49b35855fbee7928d231dba3acb all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip f5637d3b42ab0465ef71d5fb8461bce97fba95e8 Bisecting: 6337 revisions left to test after this (roughly 13 steps) [1592c4b9935fa8a3b7c297955bb872a357e5a3b6] pinctrl: sprd: Add pin high impedance mode support testing commit 1592c4b9935fa8a3b7c297955bb872a357e5a3b6 with gcc (GCC) 8.4.1 20210217 kernel signature: 570b658533298abc6146dca033eaf67943e620ea04f2f9e856c73ba9411dd61d all runs: OK # git bisect good 1592c4b9935fa8a3b7c297955bb872a357e5a3b6 Bisecting: 6274 revisions left to test after this (roughly 13 steps) [763dafc520add02a1f4639b500c509acc0ea8e5b] audit: check the length of userspace generated audit records testing commit 763dafc520add02a1f4639b500c509acc0ea8e5b with gcc (GCC) 8.4.1 20210217 kernel signature: 40e453cd1caa3c4bdf2e9d99efd1c143cea8a5b32a9dfa1bfc817c23e121b60e all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 763dafc520add02a1f4639b500c509acc0ea8e5b Bisecting: 6274 revisions left to test after this (roughly 13 steps) [377f16ac67237c8cda05daf363bcbea95212b000] xfs: factor out a xfs_attr_match helper testing commit 377f16ac67237c8cda05daf363bcbea95212b000 with gcc (GCC) 8.4.1 20210217 kernel signature: 54be3d4b4c257c9a6e6c589cc42e86dbf9ca9d0bf406a58b7338de71cfc610cd all runs: OK # git bisect good 377f16ac67237c8cda05daf363bcbea95212b000 Bisecting: 6274 revisions left to test after this (roughly 13 steps) [a72d2401f54b7db41c77ab971238a06eafe929fb] gfs2: Allow some glocks to be used during withdraw testing commit a72d2401f54b7db41c77ab971238a06eafe929fb with gcc (GCC) 8.4.1 20210217 kernel signature: 021f8137c02f1e31a5beb578cd5f04eb4ca13adbd48d1c385ec8819269282647 all runs: OK # git bisect good a72d2401f54b7db41c77ab971238a06eafe929fb Bisecting: 6274 revisions left to test after this (roughly 13 steps) [5fc0df93fccd4dc8412bfc488ba4ba8268aa12dc] Merge v5.6 into drm-next testing commit 5fc0df93fccd4dc8412bfc488ba4ba8268aa12dc with gcc (GCC) 8.4.1 20210217 kernel signature: a486449ca5146328549892e12d9c6fe21ebc8d659532483afc5c5a85e63179b4 all runs: OK # git bisect good 5fc0df93fccd4dc8412bfc488ba4ba8268aa12dc Bisecting: 5319 revisions left to test after this (roughly 13 steps) [848960e576dafc8ed54c691b2f70b92e1fdea9ba] Merge tag 'sound-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound testing commit 848960e576dafc8ed54c691b2f70b92e1fdea9ba with gcc (GCC) 8.4.1 20210217 kernel signature: db6fbc81a2e643834cf6c2769a5fcb1555e17a01b9f3db36d845362ee72b92a5 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 848960e576dafc8ed54c691b2f70b92e1fdea9ba Bisecting: 5319 revisions left to test after this (roughly 13 steps) [2f5ab6225fa2bd1435a65e9a2c5503e5b5cf4b45] Merge tag 'docs-5.6-fixes' into docs-next testing commit 2f5ab6225fa2bd1435a65e9a2c5503e5b5cf4b45 with gcc (GCC) 8.4.1 20210217 kernel signature: 7afa35fcdbe3fc7cf3f99b493be01ffdd4a230587dd9085290b0ad2f3e9c4102 all runs: OK # git bisect good 2f5ab6225fa2bd1435a65e9a2c5503e5b5cf4b45 Bisecting: 5319 revisions left to test after this (roughly 13 steps) [0830c0a4891f9de009dfaa585dfecefa4c67795b] Bluetooth: hci_h5: Move variable into local scope testing commit 0830c0a4891f9de009dfaa585dfecefa4c67795b with gcc (GCC) 8.4.1 20210217 kernel signature: 1cdf29555700bf09863dda0ab5423ccf0b6825d4e8bca50244637bbd734c83a0 all runs: OK # git bisect good 0830c0a4891f9de009dfaa585dfecefa4c67795b Bisecting: 5319 revisions left to test after this (roughly 13 steps) [7f218319caaaf6f2a43b22d8c82b898f32b4ec70] Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity testing commit 7f218319caaaf6f2a43b22d8c82b898f32b4ec70 with gcc (GCC) 8.4.1 20210217 kernel signature: 6bc5e2984e1369af4e7596bc3b21f04c30921e650c61a2f7fceafe3ca164ec31 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 7f218319caaaf6f2a43b22d8c82b898f32b4ec70 Bisecting: 5319 revisions left to test after this (roughly 13 steps) [ec06dc15c358d3f41e9fd05872d772ed0f9fa32a] ASoC: dapm: select sleep_state when initializing PINCTRL widget testing commit ec06dc15c358d3f41e9fd05872d772ed0f9fa32a with gcc (GCC) 8.4.1 20210217 kernel signature: 48f08c2ed514eb878dd9f59241c7494b2fd7166f41dd01fc1bcb12b98a3a95ab all runs: OK # git bisect good ec06dc15c358d3f41e9fd05872d772ed0f9fa32a Bisecting: 5319 revisions left to test after this (roughly 12 steps) [d84edddc447df2d87e6ce9fbf94d95225504ab32] iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architectures testing commit d84edddc447df2d87e6ce9fbf94d95225504ab32 with gcc (GCC) 8.4.1 20210217 kernel signature: 272e04a89b0f8a903da4de63f5f7d4cb4271c5e1ec8a92819c60f57ceb597669 all runs: OK # git bisect good d84edddc447df2d87e6ce9fbf94d95225504ab32 Bisecting: 5316 revisions left to test after this (roughly 12 steps) [a3434a497a2f33324e0f47bc1500a400959b4b25] ASoC: jz4740-i2s: Add support for the JZ4770 testing commit a3434a497a2f33324e0f47bc1500a400959b4b25 with gcc (GCC) 8.4.1 20210217 kernel signature: 04ef9d82cf375af9e07729cf64eb2fb4b7c62dce26a8210b657d39328f50d95c all runs: OK # git bisect good a3434a497a2f33324e0f47bc1500a400959b4b25 Bisecting: 5316 revisions left to test after this (roughly 12 steps) [0be44352071dc87a4f9bf879642b1d44876971d9] KVM: x86/mmu: Reuse the current root if possible for fast switch testing commit 0be44352071dc87a4f9bf879642b1d44876971d9 with gcc (GCC) 8.4.1 20210217 kernel signature: d115bdd45c0b585e104665427337513409c5ca7403efde0ab2d78e57adf7c018 all runs: OK # git bisect good 0be44352071dc87a4f9bf879642b1d44876971d9 Bisecting: 5279 revisions left to test after this (roughly 12 steps) [5c8db3eb381745c010ba746373a279e92502bdc8] Merge branch 'i2c/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux testing commit 5c8db3eb381745c010ba746373a279e92502bdc8 with gcc (GCC) 8.4.1 20210217 kernel signature: a1940bd1084f79f0e1f2a1157127a15f5c35cfef47b927c39c1f2e6e3ffea61e all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip 5c8db3eb381745c010ba746373a279e92502bdc8 Bisecting: 5279 revisions left to test after this (roughly 12 steps) [4ed59504fbfbf3f9ceb957bc3a309bfd85f6cea3] net: ethernet: ti: ale: am65: add support for default thread cfg testing commit 4ed59504fbfbf3f9ceb957bc3a309bfd85f6cea3 with gcc (GCC) 8.4.1 20210217 kernel signature: ba27a8cbff39c21f473b0f5179bd50cd23260d2b4ab04231629e19b4f1282c83 all runs: OK # git bisect good 4ed59504fbfbf3f9ceb957bc3a309bfd85f6cea3 Bisecting: 5081 revisions left to test after this (roughly 12 steps) [e109f506074152b7241bcbd3949a099e776cb802] Merge tag 'mtd/for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux testing commit e109f506074152b7241bcbd3949a099e776cb802 with gcc (GCC) 8.4.1 20210217 kernel signature: f14101ce952d6798772d9d6cd1296ca2ea8ec926399f6312dc4926055e0fb0a7 all runs: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1) # git bisect skip e109f506074152b7241bcbd3949a099e776cb802 Bisecting: 5081 revisions left to test after this (roughly 12 steps) [a5fb8b918920c6f7706a8b5b8ea535a7f077a7f6] drm/msm/a6xx: Use the DMA API for GMU memory objects testing commit a5fb8b918920c6f7706a8b5b8ea535a7f077a7f6 with gcc (GCC) 8.4.1 20210217 kernel signature: 971b65773ad5622d9dead203c58505dc84b88be094bec1a1c0cf0d135d2c1b10 all runs: OK # git bisect good a5fb8b918920c6f7706a8b5b8ea535a7f077a7f6 Bisecting: 5081 revisions left to test after this (roughly 12 steps) [7289fdb5dcdbc5155b5531529c44105868a762f2] KVM: Remove CREATE_IRQCHIP/SET_PIT2 race revisions tested: 33, total time: 8h11m39.886875172s (build: 3h38m58.355365701s, test: 4h28m58.881388696s) error: bisection is taking too long (>8h0m0s), aborting