bisecting fixing commit since 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae building syzkaller on 2242f77fdc5a6c50bd8fa1021d2abc8b83e09e8d testing commit 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae with gcc (GCC) 8.1.0 kernel signature: c9eed95897be493cb8463d69c8b9c2b32f70d8def1bd08581d35b83b976e2fdc all runs: crashed: general protection fault in dqput testing current HEAD 2d2791fce891fc20709232d49a6bae075b9a77f8 testing commit 2d2791fce891fc20709232d49a6bae075b9a77f8 with gcc (GCC) 8.1.0 kernel signature: 1cb1f701026757ec8f80f2ace84258e4fe2a3b4e55e63984036d3d30950aa579 all runs: OK # git bisect start 2d2791fce891fc20709232d49a6bae075b9a77f8 3f2ecb86cb909da0b9157fd2952ad79924cbe5ae Bisecting: 203 revisions left to test after this (roughly 8 steps) [90d0cc80b9642dae6f2f94ddf8945dbe34b485e6] USB: serial: keyspan_pda: fix write unthrottling testing commit 90d0cc80b9642dae6f2f94ddf8945dbe34b485e6 with gcc (GCC) 8.1.0 kernel signature: 07871e1def186adf211299f470018f8fc2c7b56eddf571c40b31f09f0655655f all runs: OK # git bisect bad 90d0cc80b9642dae6f2f94ddf8945dbe34b485e6 Bisecting: 101 revisions left to test after this (roughly 7 steps) [0477232db1bc5ac481e627d594fc0735ec618d1b] soc: ti: Fix reference imbalance in knav_dma_probe testing commit 0477232db1bc5ac481e627d594fc0735ec618d1b with gcc (GCC) 8.1.0 kernel signature: a74c891d1d6d440fb49764d081e700af5588cad66904bd5dd6f6f4f2defca181 all runs: OK # git bisect bad 0477232db1bc5ac481e627d594fc0735ec618d1b Bisecting: 50 revisions left to test after this (roughly 6 steps) [64138c4f7a372951cd7d1884ee87137caeb700f0] USB: gadget: f_acm: add support for SuperSpeed Plus testing commit 64138c4f7a372951cd7d1884ee87137caeb700f0 with gcc (GCC) 8.1.0 kernel signature: c0e11cf5f27f148e74095d729280e1325683c67e44f697f529474649c9ace7a7 all runs: crashed: BUG: unable to handle kernel paging request in dqput # git bisect good 64138c4f7a372951cd7d1884ee87137caeb700f0 Bisecting: 25 revisions left to test after this (roughly 5 steps) [fea0cdd44706b9c499df4f7cde40f6f75f501f7f] crypto: talitos - Fix return type of current_desc_hdr() testing commit fea0cdd44706b9c499df4f7cde40f6f75f501f7f with gcc (GCC) 8.1.0 kernel signature: 9ffab57eb38e91d5cde8ce5337cb55c3f4d334115f465c5363e750216f86ad1b all runs: OK # git bisect bad fea0cdd44706b9c499df4f7cde40f6f75f501f7f Bisecting: 12 revisions left to test after this (roughly 4 steps) [d770afcdf11b2ebcac54ab69f9423e8d2dc8c9ae] crypto: af_alg - avoid undefined behavior accessing salg_name testing commit d770afcdf11b2ebcac54ab69f9423e8d2dc8c9ae with gcc (GCC) 8.1.0 kernel signature: aaa2bfd256a796b8540d221ed6d58d7a8826c7b801809e5a4b748dbee90ab5a8 all runs: OK # git bisect bad d770afcdf11b2ebcac54ab69f9423e8d2dc8c9ae Bisecting: 5 revisions left to test after this (roughly 3 steps) [58ab20e19f70337259b272d2252f77b73dce9099] ARM: dts: exynos: fix USB 3.0 VBUS control and over-current pins on Exynos5410 testing commit 58ab20e19f70337259b272d2252f77b73dce9099 with gcc (GCC) 8.1.0 kernel signature: 486efc4987ae988c10779697972a1e928659ccf1eba2985395ecf5f50e3aa598 all runs: crashed: BUG: unable to handle kernel paging request in dqput # git bisect good 58ab20e19f70337259b272d2252f77b73dce9099 Bisecting: 2 revisions left to test after this (roughly 2 steps) [cf394db8b470c41589a7e8a2da0192b7a49c9cac] serial_core: Check for port state when tty is in error state testing commit cf394db8b470c41589a7e8a2da0192b7a49c9cac with gcc (GCC) 8.1.0 kernel signature: e1f5f6c968358fb359f88d97490670b538de12b130c5b52536367906600f2ba8 all runs: crashed: general protection fault in dqput # git bisect good cf394db8b470c41589a7e8a2da0192b7a49c9cac Bisecting: 0 revisions left to test after this (roughly 1 step) [37e7d9aa24bd40c62062df0fa1a0a2f245519d96] media: msi2500: assign SPI bus number dynamically testing commit 37e7d9aa24bd40c62062df0fa1a0a2f245519d96 with gcc (GCC) 8.1.0 kernel signature: 74ab8e7eb0bfe1bf51ca3bb79747c66df9a524200bb585431c8c442276bcca9a all runs: OK # git bisect bad 37e7d9aa24bd40c62062df0fa1a0a2f245519d96 Bisecting: 0 revisions left to test after this (roughly 0 steps) [a9c625fcddc078624e1e7a673443b29c71be3431] quota: Sanity-check quota file headers on load testing commit a9c625fcddc078624e1e7a673443b29c71be3431 with gcc (GCC) 8.1.0 kernel signature: 7ddf51ae6b02fa1ff5891f97c5eff7d587ff4237d936fe8b2f3237627509f063 all runs: OK # git bisect bad a9c625fcddc078624e1e7a673443b29c71be3431 a9c625fcddc078624e1e7a673443b29c71be3431 is the first bad commit commit a9c625fcddc078624e1e7a673443b29c71be3431 Author: Jan Kara Date: Mon Nov 2 16:16:29 2020 +0100 quota: Sanity-check quota file headers on load commit 11c514a99bb960941535134f0587102855e8ddee upstream. Perform basic sanity checks of quota headers to avoid kernel crashes on corrupted quota files. CC: stable@vger.kernel.org Reported-by: syzbot+f816042a7ae2225f25ba@syzkaller.appspotmail.com Reviewed-by: Andreas Dilger Signed-off-by: Jan Kara Signed-off-by: Greg Kroah-Hartman fs/quota/quota_v2.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) culprit signature: 7ddf51ae6b02fa1ff5891f97c5eff7d587ff4237d936fe8b2f3237627509f063 parent signature: e1f5f6c968358fb359f88d97490670b538de12b130c5b52536367906600f2ba8 revisions tested: 11, total time: 2h54m27.072073691s (build: 1h41m21.231794286s, test: 1h11m34.423420363s) first good commit: a9c625fcddc078624e1e7a673443b29c71be3431 quota: Sanity-check quota file headers on load recipients (to): ["adilger@dilger.ca" "gregkh@linuxfoundation.org" "jack@suse.cz"] recipients (cc): []