bisecting cause commit starting from ef6b35306dd8f15a7e5e5a2532e665917a43c5d9 building syzkaller on 0b33604d8e2793b82ec89abecf82d92b82e3d410 testing commit ef6b35306dd8f15a7e5e5a2532e665917a43c5d9 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: c4c30a1151a70be6194403a86c70f3150c402589aa4c1bfeb397987f3d8cc4bb all runs: crashed: general protection fault in i2c_setup_smbus_alert testing release v5.16 testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 6392e7dc90e0a4647080a5029d93ca58348fb8a5852ea8aba24fe1cfc2cb5f6d run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe 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 start ef6b35306dd8f15a7e5e5a2532e665917a43c5d9 df0cc57e057f18e44dac8e6c18aba47ab53202f9 Bisecting: 8213 revisions left to test after this (roughly 13 steps) [feb7a43de5ef625ad74097d8fd3481d5dbc06a59] Merge tag 'irq-msi-2022-01-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit feb7a43de5ef625ad74097d8fd3481d5dbc06a59 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 8bc139fa4304ea8ad6e69c050ccb7f480a3b41840eb21715a3a7ceeffdd88dbd run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM 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 feb7a43de5ef625ad74097d8fd3481d5dbc06a59 Bisecting: 4107 revisions left to test after this (roughly 12 steps) [0a78117213c4bb85dfebf89b924226883597bc60] Merge tag 'for-net-next-2022-01-28' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next testing commit 0a78117213c4bb85dfebf89b924226883597bc60 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: ad709903d5e681477b7b67850b3de37fda172ff6d92d775946910ae6c5780831 all runs: OK # git bisect good 0a78117213c4bb85dfebf89b924226883597bc60 Bisecting: 2067 revisions left to test after this (roughly 11 steps) [024ad8f570ed8c5dd8630f395ca5ce48eca91740] Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git testing commit 024ad8f570ed8c5dd8630f395ca5ce48eca91740 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: a2d48e16359663d102ce1a96285dfe758c4a5bf25325495ccfd4db8508fb7b5f all runs: crashed: general protection fault in i2c_setup_smbus_alert # git bisect bad 024ad8f570ed8c5dd8630f395ca5ce48eca91740 Bisecting: 1025 revisions left to test after this (roughly 10 steps) [81abcf9948cda5c63f68b281e864ec7d963fbd07] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap.git testing commit 81abcf9948cda5c63f68b281e864ec7d963fbd07 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b4c3de4e2641cd716471e3189e8057178101dc90141b06986238237cc358488a run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: exit status NUM 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 81abcf9948cda5c63f68b281e864ec7d963fbd07 Bisecting: 516 revisions left to test after this (roughly 9 steps) [5dfba3005527a2e1f029b837e4bb35fb8dd98083] Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git testing commit 5dfba3005527a2e1f029b837e4bb35fb8dd98083 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: c0c1ad59c5c444f570f6bea18b561fe085bd1dfcccb5637c27f763c130995148 all runs: OK # git bisect good 5dfba3005527a2e1f029b837e4bb35fb8dd98083 Bisecting: 258 revisions left to test after this (roughly 8 steps) [da71649eda426e122e390532c19ee55588f8d598] Merge branch 'master' of git://linuxtv.org/mchehab/media-next.git testing commit da71649eda426e122e390532c19ee55588f8d598 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 4ec83dc65b7e7884ab396c094d98be25b3b2cb1899c3a46217e24e44f4ddde02 all runs: crashed: general protection fault in i2c_setup_smbus_alert # git bisect bad da71649eda426e122e390532c19ee55588f8d598 Bisecting: 128 revisions left to test after this (roughly 7 steps) [a16ce2f33732d04945c45922b3edb018caffcc07] media: dt-bindings: mediatek: convert mtk jpeg decoder/encoder to yaml testing commit a16ce2f33732d04945c45922b3edb018caffcc07 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 8ad8c16c34d0a1d4df51f3630a8b6fd8fab8900e893a8b1571fa38ee5c0aa145 all runs: OK # git bisect good a16ce2f33732d04945c45922b3edb018caffcc07 Bisecting: 60 revisions left to test after this (roughly 6 steps) [29e1540f0e9a11e7320f831be3c94c5d2d292651] Merge branch 'hwmon-next' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git testing commit 29e1540f0e9a11e7320f831be3c94c5d2d292651 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f092befe584b558df54bcad97c74037c5b8fca80015f8f6982758b44d50f3862 run #0: crashed: general protection fault in i2c_setup_smbus_alert run #1: crashed: general protection fault in i2c_setup_smbus_alert run #2: crashed: general protection fault in i2c_setup_smbus_alert run #3: crashed: general protection fault in i2c_setup_smbus_alert run #4: crashed: general protection fault in i2c_setup_smbus_alert run #5: crashed: general protection fault in corrupted run #6: crashed: general protection fault in corrupted run #7: crashed: general protection fault in i2c_setup_smbus_alert run #8: crashed: general protection fault in i2c_setup_smbus_alert run #9: crashed: general protection fault in i2c_setup_smbus_alert # git bisect bad 29e1540f0e9a11e7320f831be3c94c5d2d292651 Bisecting: 33 revisions left to test after this (roughly 5 steps) [1bf531493c11da709adc06555f8fa303e50c1f7c] Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git testing commit 1bf531493c11da709adc06555f8fa303e50c1f7c compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 651a84d0a8c3c3160113e782a97490af97952efd63dbe18b09a5acc4c330efa3 all runs: crashed: general protection fault in i2c_setup_smbus_alert # git bisect bad 1bf531493c11da709adc06555f8fa303e50c1f7c Bisecting: 18 revisions left to test after this (roughly 4 steps) [180b54d4c3dafc6c318a9379ca599aa37d0629bf] Merge branch 'for-5.18/sigma-micro' into for-next testing commit 180b54d4c3dafc6c318a9379ca599aa37d0629bf compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 8beb50bd8baeeeae1fdf431346eabdb5ddf5557999b1ee8906223ac7dcdf50ee all runs: OK # git bisect good 180b54d4c3dafc6c318a9379ca599aa37d0629bf Bisecting: 9 revisions left to test after this (roughly 3 steps) [395cc1cdcbd4aa3983faa9404309e1e86083c685] Merge branch 'for-5.17' into for-next testing commit 395cc1cdcbd4aa3983faa9404309e1e86083c685 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 5469592df370fdb431694812d2cb8e1169d0d2dbb46f3cfaa0dfcf3354483e50 all runs: OK # git bisect good 395cc1cdcbd4aa3983faa9404309e1e86083c685 Bisecting: 4 revisions left to test after this (roughly 2 steps) [934705316f0fce48e0a944e6efb3f8da8c616b1c] i2c: mediatek: Add i2c compatible for Mediatek MT8186 testing commit 934705316f0fce48e0a944e6efb3f8da8c616b1c compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b7d3d686f88ee6c3bad06d5b5aae9ca51b64f5cc543bfdc94690a09d09199d79 run #0: crashed: general protection fault in i2c_setup_smbus_alert run #1: crashed: general protection fault in corrupted run #2: crashed: general protection fault in i2c_setup_smbus_alert run #3: crashed: general protection fault in i2c_setup_smbus_alert run #4: crashed: general protection fault in i2c_setup_smbus_alert run #5: crashed: general protection fault in i2c_setup_smbus_alert run #6: crashed: general protection fault in i2c_setup_smbus_alert run #7: crashed: general protection fault in i2c_setup_smbus_alert run #8: crashed: general protection fault in i2c_setup_smbus_alert run #9: crashed: general protection fault in i2c_setup_smbus_alert # git bisect bad 934705316f0fce48e0a944e6efb3f8da8c616b1c Bisecting: 2 revisions left to test after this (roughly 1 step) [20e8ef5c7ffaa4c1d5f65727c536ffaf37078d5f] docs: firmware-guide: ACPI: Add named interrupt doc testing commit 20e8ef5c7ffaa4c1d5f65727c536ffaf37078d5f compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 36e87a05c0102489db68b9c99a69fa600dd390815eb31e38b1bafdbecc5311a4 all runs: OK # git bisect good 20e8ef5c7ffaa4c1d5f65727c536ffaf37078d5f Bisecting: 0 revisions left to test after this (roughly 1 step) [f244cdce52de05711d3a0e9aaa7303ef28f43f82] dt-bindings: i2c: update bindings for MT8186 SoC testing commit f244cdce52de05711d3a0e9aaa7303ef28f43f82 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: bea538be49bf7ad7b1301a7ec8ee940f63c301b903fb04916f68ccd2b9207fa7 all runs: crashed: general protection fault in i2c_setup_smbus_alert # git bisect bad f244cdce52de05711d3a0e9aaa7303ef28f43f82 Bisecting: 0 revisions left to test after this (roughly 0 steps) [a263a84088f689bf0c1552a510b25d0bcc45fcae] i2c: smbus: Use device_*() functions instead of of_*() testing commit a263a84088f689bf0c1552a510b25d0bcc45fcae compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: eeb57f0e9edd0e3515a4ca8c49fc4504a40c989a6e60d6b87839032adba97e79 all runs: crashed: general protection fault in i2c_setup_smbus_alert # git bisect bad a263a84088f689bf0c1552a510b25d0bcc45fcae a263a84088f689bf0c1552a510b25d0bcc45fcae is the first bad commit commit a263a84088f689bf0c1552a510b25d0bcc45fcae Author: Akhil R Date: Fri Jan 28 17:14:27 2022 +0530 i2c: smbus: Use device_*() functions instead of of_*() Change of_*() functions to device_*() for firmware agnostic usage. This allows to have the smbus_alert interrupt without any changes in the controller drivers using the ACPI table. Signed-off-by: Akhil R Reviewed-by: Andy Shevchenko Signed-off-by: Wolfram Sang drivers/i2c/i2c-core-base.c | 2 +- drivers/i2c/i2c-core-smbus.c | 11 ++++++----- drivers/i2c/i2c-smbus.c | 5 +++-- include/linux/i2c-smbus.h | 6 +++--- 4 files changed, 13 insertions(+), 11 deletions(-) culprit signature: eeb57f0e9edd0e3515a4ca8c49fc4504a40c989a6e60d6b87839032adba97e79 parent signature: 36e87a05c0102489db68b9c99a69fa600dd390815eb31e38b1bafdbecc5311a4 revisions tested: 17, total time: 3h0m23.494968491s (build: 2h11m50.200385969s, test: 46m38.204741251s) first bad commit: a263a84088f689bf0c1552a510b25d0bcc45fcae i2c: smbus: Use device_*() functions instead of of_*() recipients (to): ["akhilrajeev@nvidia.com" "andy.shevchenko@gmail.com" "wsa@kernel.org"] recipients (cc): [] crash: general protection fault in i2c_setup_smbus_alert usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1: Product: syz usb 1-1: Manufacturer: syz usb 1-1: SerialNumber: syz usb 1-1: config 0 descriptor?? general protection fault, probably for non-canonical address 0xdffffc000000008a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000450-0x0000000000000457] CPU: 0 PID: 3607 Comm: kworker/0:3 Not tainted 5.17.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event RIP: 0010:dev_fwnode drivers/base/property.c:22 [inline] RIP: 0010:device_property_match_string+0x20/0xb0 drivers/base/property.c:224 Code: f4 ff ff ff eb e2 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df 53 48 89 fb 48 81 c7 50 04 00 00 48 89 f9 48 83 ec 10 48 c1 e9 03 <80> 3c 01 00 75 49 48 8b bb 50 04 00 00 48 85 ff 74 0e 48 83 c4 10 RSP: 0018:ffffc9000246f048 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 000000000000008a RDX: ffffffff897c2220 RSI: ffffffff897c2260 RDI: 0000000000000450 RBP: ffff88807eb01038 R08: 0000000000000001 R09: ffff88807eb011a3 R10: ffffed100fd60234 R11: 0000000000000000 R12: ffff88807eb01038 R13: 0000000000000000 R14: ffff88807eb01660 R15: ffff88807eb01664 FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f031b9bc6a8 CR3: 000000001b413000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: i2c_setup_smbus_alert+0x94/0x140 drivers/i2c/i2c-core-smbus.c:710 i2c_register_adapter+0x2d0/0x10e0 drivers/i2c/i2c-core-base.c:1482 osif_probe+0x299/0x4a0 drivers/i2c/busses/i2c-robotfuzz-osif.c:164 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x1c2/0xb60 drivers/base/dd.c:596 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752 driver_probe_device+0x44/0x110 drivers/base/dd.c:782 __device_attach_driver+0x185/0x250 drivers/base/dd.c:899 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x1db/0x410 drivers/base/dd.c:970 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0xa57/0x1b80 drivers/base/core.c:3405 usb_set_configuration+0xa66/0x18b0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238 usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x1c2/0xb60 drivers/base/dd.c:596 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:752 driver_probe_device+0x44/0x110 drivers/base/dd.c:782 __device_attach_driver+0x185/0x250 drivers/base/dd.c:899 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427 __device_attach+0x1db/0x410 drivers/base/dd.c:970 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487 device_add+0xa57/0x1b80 drivers/base/core.c:3405 usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5358 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x1ba2/0x3930 drivers/usb/core/hub.c:5742 process_one_work+0x879/0x1410 kernel/workqueue.c:2307 worker_thread+0x5a0/0xf60 kernel/workqueue.c:2454 kthread+0x299/0x340 kernel/kthread.c:377 ---------------- Code disassembly (best guess), 4 bytes skipped: 0: eb e2 jmp 0xffffffe4 2: 0f 1f 40 00 nopl 0x0(%rax) 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 53 push %rbx 11: 48 89 fb mov %rdi,%rbx 14: 48 81 c7 50 04 00 00 add $0x450,%rdi 1b: 48 89 f9 mov %rdi,%rcx 1e: 48 83 ec 10 sub $0x10,%rsp 22: 48 c1 e9 03 shr $0x3,%rcx * 26: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) <-- trapping instruction 2a: 75 49 jne 0x75 2c: 48 8b bb 50 04 00 00 mov 0x450(%rbx),%rdi 33: 48 85 ff test %rdi,%rdi 36: 74 0e je 0x46 38: 48 83 c4 10 add $0x10,%rsp