bisecting fixing commit since 811218eceeaa7618652e1b8d11caeff67ab42072 building syzkaller on 624dad51316f9973e1349b6c71e789737d1e00d9 testing commit 811218eceeaa7618652e1b8d11caeff67ab42072 with gcc (GCC) 8.4.1 20210217 kernel signature: ffddcdcd1b5e8d682175ff57292fc117951e633236c1b514738dce5e2ba459c9 all runs: crashed: WARNING in sta_info_alloc testing current HEAD fcfbdfe9626edd5bf00c732e093eed249ecdbfa1 testing commit fcfbdfe9626edd5bf00c732e093eed249ecdbfa1 with gcc (GCC) 8.4.1 20210217 kernel signature: b563706fbf58796dc36133304c6294c146476c2d268a299b8b1ea04f4a646fae all runs: OK # git bisect start fcfbdfe9626edd5bf00c732e093eed249ecdbfa1 811218eceeaa7618652e1b8d11caeff67ab42072 Bisecting: 926 revisions left to test after this (roughly 10 steps) [7fa5409a3ce88ac91390808207835f2d72962bb7] arc: kernel: Return -EFAULT if copy_to_user() fails testing commit 7fa5409a3ce88ac91390808207835f2d72962bb7 with gcc (GCC) 8.4.1 20210217 kernel signature: 8ce97480fd484cae3e245ee257911fde84a5505bf402cad0a1777ee79fca1d8d all runs: crashed: WARNING in sta_info_alloc # git bisect good 7fa5409a3ce88ac91390808207835f2d72962bb7 Bisecting: 463 revisions left to test after this (roughly 9 steps) [ec92502e2e72f42e8759d7d6df4a78666a03d0c9] cxgb4: Fix the -Wmisleading-indentation warning testing commit ec92502e2e72f42e8759d7d6df4a78666a03d0c9 with gcc (GCC) 8.4.1 20210217 kernel signature: 2d32632e304351ffab71d364d0854b28e4c1df7bd5ced8936a1fef12aef23712 all runs: basic kernel testing failed: unregister_netdevice: waiting for DEV to become free # git bisect skip ec92502e2e72f42e8759d7d6df4a78666a03d0c9 Bisecting: 462 revisions left to test after this (roughly 9 steps) [147434d72d0a81cbadf672f70a418e9773638a8d] isdn: capi: fix mismatched prototypes testing commit 147434d72d0a81cbadf672f70a418e9773638a8d with gcc (GCC) 8.4.1 20210217 kernel signature: 2d32632e304351ffab71d364d0854b28e4c1df7bd5ced8936a1fef12aef23712 all runs: basic kernel testing failed: unregister_netdevice: waiting for DEV to become free # git bisect skip 147434d72d0a81cbadf672f70a418e9773638a8d Bisecting: 462 revisions left to test after this (roughly 9 steps) [3d638a0fff1a5ee15bbc20ffee0cddb652f35574] Bluetooth: initialize skb_queue_head at l2cap_chan_create() testing commit 3d638a0fff1a5ee15bbc20ffee0cddb652f35574 with gcc (GCC) 8.4.1 20210217 kernel signature: 19b6de21bc44c4ee58a8a31fd0c44796cdeef64ae56da8a16a3460e7090366bc all runs: crashed: WARNING in sta_info_alloc # git bisect good 3d638a0fff1a5ee15bbc20ffee0cddb652f35574 Bisecting: 274 revisions left to test after this (roughly 8 steps) [84a9886356c9a9f43e2645ed7602ec76c7c70f68] MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c testing commit 84a9886356c9a9f43e2645ed7602ec76c7c70f68 with gcc (GCC) 8.4.1 20210217 kernel signature: ec734d322608165be90c9e0aef75c72654c3d062afff45035077a51e070059c1 all runs: crashed: WARNING in sta_info_alloc # git bisect good 84a9886356c9a9f43e2645ed7602ec76c7c70f68 Bisecting: 137 revisions left to test after this (roughly 7 steps) [e296c88f07ea85d87c5381433cc5c1189c7e8c80] ARM: OMAP2+: Fix build warning when mmc_omap is not built testing commit e296c88f07ea85d87c5381433cc5c1189c7e8c80 with gcc (GCC) 8.4.1 20210217 kernel signature: f2e5dcce637cbcf436169cbe5b08d31b9babfb9078f0222e7ce6cf3fe992695a all runs: crashed: WARNING in sta_info_alloc # git bisect good e296c88f07ea85d87c5381433cc5c1189c7e8c80 Bisecting: 68 revisions left to test after this (roughly 6 steps) [b5c8467d00314d596de481bb2cea6df9fc6e030e] net: fec_ptp: add clock rate zero check testing commit b5c8467d00314d596de481bb2cea6df9fc6e030e with gcc (GCC) 8.4.1 20210217 kernel signature: 9a56216f0801e631706e510f29d642b917e0c662d005893fde4fb97f07e25073 all runs: crashed: WARNING in sta_info_alloc # git bisect good b5c8467d00314d596de481bb2cea6df9fc6e030e Bisecting: 33 revisions left to test after this (roughly 5 steps) [131cb7a08c767e2d082ff5de6d384d8d935fb6f1] mm: add VM_WARN_ON_ONCE_PAGE() macro testing commit 131cb7a08c767e2d082ff5de6d384d8d935fb6f1 with gcc (GCC) 8.4.1 20210217 kernel signature: e5b1ed30fada4f1d7929cd24139e824c33bee92244fbfef0fa076c9fc6f6874c all runs: OK # git bisect bad 131cb7a08c767e2d082ff5de6d384d8d935fb6f1 Bisecting: 17 revisions left to test after this (roughly 4 steps) [6ab6b68ddf09fad033e653ed85acc8789d57fa6b] mac80211: drop multicast fragments testing commit 6ab6b68ddf09fad033e653ed85acc8789d57fa6b with gcc (GCC) 8.4.1 20210217 kernel signature: 3172f2a5793365b49978f9f6c0892b8aa2c4808a1bf30277da427d0aa7b764de all runs: OK # git bisect bad 6ab6b68ddf09fad033e653ed85acc8789d57fa6b Bisecting: 7 revisions left to test after this (roughly 3 steps) [4b4ce5cbef3a30820a21008a62327f55e8a24094] drm/nouveau: wait for moving fence after pinning v2 testing commit 4b4ce5cbef3a30820a21008a62327f55e8a24094 with gcc (GCC) 8.4.1 20210217 kernel signature: 0e8caff23f37f23208c46691d2d9010d0d2196036740861b3d1e43d83cdf7375 all runs: crashed: WARNING in sta_info_alloc # git bisect good 4b4ce5cbef3a30820a21008a62327f55e8a24094 Bisecting: 3 revisions left to test after this (roughly 2 steps) [822564cd3aa1a6a092cc227e394f31f902864b88] MIPS: generic: Update node names to avoid unit addresses testing commit 822564cd3aa1a6a092cc227e394f31f902864b88 with gcc (GCC) 8.4.1 20210217 kernel signature: 0e8caff23f37f23208c46691d2d9010d0d2196036740861b3d1e43d83cdf7375 all runs: crashed: WARNING in sta_info_alloc # git bisect good 822564cd3aa1a6a092cc227e394f31f902864b88 Bisecting: 1 revision left to test after this (roughly 1 step) [25487a5ff100398cb214ae854358609e4bbd4e7d] mac80211: remove warning in ieee80211_get_sband() testing commit 25487a5ff100398cb214ae854358609e4bbd4e7d with gcc (GCC) 8.4.1 20210217 kernel signature: 854de83794a19d7559be60a4d6b21661b4d4eb74fa1bd83dffd609f73d91f70b all runs: OK # git bisect bad 25487a5ff100398cb214ae854358609e4bbd4e7d Bisecting: 0 revisions left to test after this (roughly 0 steps) [2bf73bce3df9517c4144f05ea0a80dbfeaa36933] Revert "PCI: PM: Do not read power state in pci_enable_device_flags()" testing commit 2bf73bce3df9517c4144f05ea0a80dbfeaa36933 with gcc (GCC) 8.4.1 20210217 kernel signature: 6b82f804fd51e22848fb79719af48939b1781cd8bfb66a8e858cbacec2a2a65f all runs: crashed: WARNING in sta_info_alloc # git bisect good 2bf73bce3df9517c4144f05ea0a80dbfeaa36933 25487a5ff100398cb214ae854358609e4bbd4e7d is the first bad commit commit 25487a5ff100398cb214ae854358609e4bbd4e7d Author: Johannes Berg Date: Mon May 17 16:47:17 2021 +0200 mac80211: remove warning in ieee80211_get_sband() [ Upstream commit 0ee4d55534f82a0624701d0bb9fc2304d4529086 ] Syzbot reports that it's possible to hit this from userspace, by trying to add a station before any other connection setup has been done. Instead of trying to catch this in some other way simply remove the warning, that will appropriately reject the call from userspace. Reported-by: syzbot+7716dbc401d9a437890d@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20210517164715.f537da276d17.Id05f40ec8761d6a8cc2df87f1aa09c651988a586@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin net/mac80211/ieee80211_i.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) culprit signature: 854de83794a19d7559be60a4d6b21661b4d4eb74fa1bd83dffd609f73d91f70b parent signature: 6b82f804fd51e22848fb79719af48939b1781cd8bfb66a8e858cbacec2a2a65f revisions tested: 15, total time: 3h57m9.080787104s (build: 2h35m34.174613219s, test: 1h19m53.057073158s) first good commit: 25487a5ff100398cb214ae854358609e4bbd4e7d mac80211: remove warning in ieee80211_get_sband() recipients (to): ["davem@davemloft.net" "johannes.berg@intel.com" "johannes@sipsolutions.net" "linux-wireless@vger.kernel.org" "netdev@vger.kernel.org" "sashal@kernel.org"] recipients (cc): ["linux-kernel@vger.kernel.org"]