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Wed, 11 Jun 2025 11:02:03 -0700 (PDT) Date: Wed, 11 Jun 2025 11:02:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6849c49b.a00a0220.1eb5f5.00f2.GAE@google.com> Subject: Re: [syzbot] [bcachefs?] [rcu?] BUG: unable to handle kernel NULL pointer dereference in rcu_core (3) From: syzbot To: akpm@linux-foundation.org, josh@joshtriplett.org, kent.overstreet@linux.dev, linux-bcachefs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, paulmck@kernel.org, rcu@vger.kernel.org, syzkaller-bugs@googlegroups.com, urezki@gmail.com Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 3AC1180021 X-Stat-Signature: j7ug1w6ke9n1jjrkmjyj3mpe7njj7gjw X-HE-Tag: 1749664924-517420 X-HE-Meta: U2FsdGVkX1+z3oz3reCPSo314n7IA+lgiEDe2owCwqZeZbAV1Ue4Yeml+spI1qpkcrZ4s7yMGevYpTcHgWKsL3vFHIQoy93JSG+1n8fr6u35XiklfA0JrKaw6/dFrtRjlhYQUlRJHK0dVz6EQQ/xKJx1t+pjA593rs+ZplvH1hl6yTLZfwh/6jCGesuAgdUTT1+SAKxc8D8EwoiHyKuwBrMTT8xrQFX8FfSYKiEFJ5K9Hirxi/OER1MUIWrZYUadBk6yO12YVRERhCzvmWAtNPUQ/t56yAQYj3TqSfRD78JVyNPTVUbwaPgc7yEoM2XNiizKYIk4kZUKdQgSRZT00IWyarXtsmGZWKvgTeBZXNjUPQw7BGdaugzTx12IqSMf4/ORuKCqmJpb8DD9c1H4yfFRfGT7q7dTYam/gBnpbvsD9VQydXZJIR/W7p2lhng/3rR9u2OnqxzJmnbL0ndZ2RdwuBMY24FE3wQ/E1IYapHJqNv583g5KjnUl+IM+reZ5F8jaQjyi6nU69aUAnU+Spq8jay+ryjRiBAU6LZCEuTXFsvjRjguZ6HcmLBEZg46Gf/hl9MXt2FnyJq+GHzMIDfZvpswMmIakVVx/1eXblW5pwiXYJKww+Lj1yXuqOUmrKSz6JGod2Za0F+6nvHLhzZ9NUaP/X2waCX9bwDS+ExYk+3u3Qm0q1hEqXZISOyAFPfBk8WqVSeX/CISP46fU3vkAWa686pBj60vcOAlb8lSkQbe97EDopFHXx84e//KG/P+alUB52pV60vn3/1eRavqXRoirfsdOpeFPk/1lhmibKg7K2TX528FOUzw9oQEj+yahLYk9t3faM4xcu5JAWzodpT1hZ02Y9C9NtNuZP7rwD+KWbCwlctVsNExJFT3LOVbSzvPmDJ1jy4k0xSYj/JyefFVRulzOvY1gHe+flWi839YnvJegj0edXem7yeuQJtpJWbfGtp2G+PhcUu RDs0Ez1W 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, syzbot tried to test the proposed patch but the build/boot failed: failed to apply patch: checking file kernel/rcu/tree.c patch: **** unexpected end of file in patch Tested on: commit: aef17cb3 Revert "mm/damon/Kconfig: enable CONFIG_DAMON.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=523d3ff8e053340a dashboard link: https://syzkaller.appspot.com/bug?extid=80e5d6f453f14a53383a compiler: patch: https://syzkaller.appspot.com/x/patch.diff?x=17de99d4580000