bisecting fixing commit since c3038e718a19fc596f7b1baba0f83d5146dc7784 building syzkaller on 25bb509e5964da8203766c4039e4fef25e4689b1 testing commit c3038e718a19fc596f7b1baba0f83d5146dc7784 with gcc (GCC) 8.1.0 kernel signature: 00e1485234bad494dad38add66c1568278064b43 run #0: crashed: KASAN: use-after-free Read in __lock_sock run #1: crashed: KASAN: use-after-free Read in __lock_sock run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK testing current HEAD 7d120bf21c05cbe30a679f0feeca884eeaceb069 testing commit 7d120bf21c05cbe30a679f0feeca884eeaceb069 with gcc (GCC) 8.1.0 kernel signature: 2cbd0543b627f869b34c30593accc6d3d795bb63 all runs: OK # git bisect start 7d120bf21c05cbe30a679f0feeca884eeaceb069 c3038e718a19fc596f7b1baba0f83d5146dc7784 Bisecting: 1084 revisions left to test after this (roughly 10 steps) [94764e3ae569573903af9ea8201073eb96cb4d64] proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted() testing commit 94764e3ae569573903af9ea8201073eb96cb4d64 with gcc (GCC) 8.1.0 kernel signature: 5ac9647ff464234c55dbb0c5b7030b8ef869898a all runs: OK # git bisect bad 94764e3ae569573903af9ea8201073eb96cb4d64 Bisecting: 542 revisions left to test after this (roughly 9 steps) [5a408693b414afcea1e0c31ed4b2e36fe3a64458] rtc: sysfs: fix NULL check in rtc_add_groups() testing commit 5a408693b414afcea1e0c31ed4b2e36fe3a64458 with gcc (GCC) 8.1.0 kernel signature: 9dae5c5dfe3abfe860a52e40e2dfca7bea5c8da9 all runs: OK # git bisect bad 5a408693b414afcea1e0c31ed4b2e36fe3a64458 Bisecting: 270 revisions left to test after this (roughly 8 steps) [fa18f803d1f73851f89586a1b2e6469d6d7adbc1] tracing: Fix "gfp_t" format for synthetic events testing commit fa18f803d1f73851f89586a1b2e6469d6d7adbc1 with gcc (GCC) 8.1.0 kernel signature: 6f8a4a5ba2e5da23299c4bd3a41786a2a20e5a9f all runs: OK # git bisect bad fa18f803d1f73851f89586a1b2e6469d6d7adbc1 Bisecting: 135 revisions left to test after this (roughly 7 steps) [961ba81d08d864077fc0b4f2f4224453751d587c] usb: handle warm-reset port requests on hub resume testing commit 961ba81d08d864077fc0b4f2f4224453751d587c with gcc (GCC) 8.1.0 kernel signature: f27bfe98795ab76dd28ab8283edf293399ead59d all runs: OK # git bisect bad 961ba81d08d864077fc0b4f2f4224453751d587c Bisecting: 67 revisions left to test after this (roughly 6 steps) [f712e3066f75996f49b60145f0329f9e078eeabd] mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo testing commit f712e3066f75996f49b60145f0329f9e078eeabd with gcc (GCC) 8.1.0 kernel signature: 747edf59ca60d748459a3879500d7de66ef36cf0 all runs: OK # git bisect bad f712e3066f75996f49b60145f0329f9e078eeabd Bisecting: 33 revisions left to test after this (roughly 5 steps) [cd8c21ca7022a45bc0a60d9e72fd6060103957f5] net: stmmac: disable/enable ptp_ref_clk in suspend/resume flow testing commit cd8c21ca7022a45bc0a60d9e72fd6060103957f5 with gcc (GCC) 8.1.0 kernel signature: 8954e48572b8db78d141c5383a1c9354214e4b4c all runs: OK # git bisect bad cd8c21ca7022a45bc0a60d9e72fd6060103957f5 Bisecting: 16 revisions left to test after this (roughly 4 steps) [db1e664e2d8075536741caa3f1d99920cf7190c1] mips: Loongson: Fix the link time qualifier of 'serial_exit()' testing commit db1e664e2d8075536741caa3f1d99920cf7190c1 with gcc (GCC) 8.1.0 kernel signature: a823fa9107cb4b32be7d5d598e24f2758c925f4c run #0: crashed: KASAN: use-after-free Read in __lock_sock 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 db1e664e2d8075536741caa3f1d99920cf7190c1 Bisecting: 8 revisions left to test after this (roughly 3 steps) [0d3ad773b44501ce9c75a9ba9d56819d766063f7] ocfs2: fix panic due to ocfs2_wq is null testing commit 0d3ad773b44501ce9c75a9ba9d56819d766063f7 with gcc (GCC) 8.1.0 kernel signature: a1d9688805517fe34c501a5aa6b26b3f1df7fdbe all runs: OK # git bisect bad 0d3ad773b44501ce9c75a9ba9d56819d766063f7 Bisecting: 3 revisions left to test after this (roughly 2 steps) [9bc5a4db9aa96989f131a92ee3d002e285b84596] namespace: fix namespace.pl script to support relative paths testing commit 9bc5a4db9aa96989f131a92ee3d002e285b84596 with gcc (GCC) 8.1.0 kernel signature: 56b58023208b753cd1721f65a53f93c81dec4713 run #0: crashed: KASAN: use-after-free Read in sctp_hash_cmp 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 9bc5a4db9aa96989f131a92ee3d002e285b84596 Bisecting: 1 revision left to test after this (roughly 1 step) [9457994a53d10a2606f5c80a5767d579ca2edb70] md/raid0: fix warning message for parameter default_layout testing commit 9457994a53d10a2606f5c80a5767d579ca2edb70 with gcc (GCC) 8.1.0 kernel signature: 3da97f7951a1e797e0e556d6afa1b28f40b60606 all runs: OK # git bisect bad 9457994a53d10a2606f5c80a5767d579ca2edb70 Bisecting: 0 revisions left to test after this (roughly 0 steps) [51f0c10890aa9d3315164063187cbf80368dc5a6] libata/ahci: Fix PCS quirk application testing commit 51f0c10890aa9d3315164063187cbf80368dc5a6 with gcc (GCC) 8.1.0 kernel signature: e96b0e1abb99917a4600b505a0b025f5d5de5c4d all runs: OK # git bisect bad 51f0c10890aa9d3315164063187cbf80368dc5a6 51f0c10890aa9d3315164063187cbf80368dc5a6 is the first bad commit commit 51f0c10890aa9d3315164063187cbf80368dc5a6 Author: Dan Williams Date: Tue Oct 15 12:54:17 2019 -0700 libata/ahci: Fix PCS quirk application [ Upstream commit 09d6ac8dc51a033ae0043c1fe40b4d02563c2496 ] Commit c312ef176399 "libata/ahci: Drop PCS quirk for Denverton and beyond" got the polarity wrong on the check for which board-ids should have the quirk applied. The board type board_ahci_pcs7 is defined at the end of the list such that "pcs7" boards can be special cased in the future if they need the quirk. All prior Intel board ids "< board_ahci_pcs7" should proceed with applying the quirk. Reported-by: Andreas Friedrich Reported-by: Stephen Douthit Fixes: c312ef176399 ("libata/ahci: Drop PCS quirk for Denverton and beyond") Cc: Signed-off-by: Dan Williams Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin drivers/ata/ahci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) culprit signature: e96b0e1abb99917a4600b505a0b025f5d5de5c4d parent signature: 56b58023208b753cd1721f65a53f93c81dec4713 revisions tested: 13, total time: 4h0m28.901054546s (build: 1h49m37.392944519s, test: 2h9m41.466155019s) first good commit: 51f0c10890aa9d3315164063187cbf80368dc5a6 libata/ahci: Fix PCS quirk application cc: ["axboe@kernel.dk" "dan.j.williams@intel.com" "sashal@kernel.org"]