From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3E1003FC2 for ; Fri, 27 Dec 2024 01:52:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735264380; cv=none; b=Rhv5Td1J4UPRWcco0BR3W+1t/GgkmtvOS9+KGf5aaWnVcR8kcL2xLW3laEovkAVFi2d539VQ/SZarRAnU7AV6/qdvxw1HFWUH6cudMYC6N6Z7tgcGcbUOc5OQjEMidVV5NlVOq7D+kf2A6BLKHLwblZcuQYLyzjxsCtKs/EX++8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735264380; c=relaxed/simple; bh=B0ZLN9+knAFar+V3kplinHUGBF6kh7xxiQFRld8LnrU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=uIcGowTm71fR7z2xJP4HhwYgX92zxfT1Q7nayei+MGq7aPU5DcheXqNttTMIln2QsNIiglD4EkKPKSNKGOAsYMC6ztGOZoFLI7CBE4FG2AfRNcyADi9qRU2BRBGYtoxuN9FpqHCO6ylKJjYEoAAW0z5RvMacKmikoTc1KrwfV2M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-3a81357cdc7so73482665ab.1 for ; Thu, 26 Dec 2024 17:52:58 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735264378; x=1735869178; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=DK4kqw2cTdbm+/2EKLQmXwDTDwPJyaiZPR0lZwbazzg=; b=vinO0F9UaMkDO/KwV4MkoeRvyoWwA58wGs6ijKoqLv2yk3ZcCYtx+tncLgFM4ChKSh vIZ5BWSOXuEYpMV10dOX3MP//4LLEQQQ57BYEs9E8uCV/hREv1uww4UVruSy00Jc2fRU IX+s4SoJkLfqQrDzcu/+Ajs7T/h/LQgPYLfmxOf09gzrxvfFLA5DbIEb/iWx5iGW+YQ6 /7ba8QiuJIsL91DRqrDstSOd63UCHl9n0Ew28/4bcRB0drlYlmkr2f75t52LiodtWN2g yi1rJtYHP7I2FNH0z9h1NEWEfR0scysstzGk7kPPTVw6qwGcIKB7CNXilU4nyPIWsVdr ra6g== X-Gm-Message-State: AOJu0Yz4pp5fkmhpss84NGJC3NpHNcHKmAmkHoAtHvkFn259bfz3B84k pS52S052s15D7oMTTTBrg2OlGq3uuaGR/K09SMCQYEer8DsroruwJWCs6ZzYXtsxeeRE4boItgT mI91BLwjs640qDF29+jiGfQvVcbqhojOx/NyWnXZ8Y+kGMzSXs2Ko8u4= X-Google-Smtp-Source: AGHT+IEcVZy/6CyLrQQOJZFbYTUR7WDM06H0hDEYMpRd3rUEetRPzxhSEsYvl15nxPxduG9C/5Tvi4FYMZAp8lbvm3S8ZkeyUglf Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:188e:b0:3a7:e8df:3fcb with SMTP id e9e14a558f8ab-3c3018ab08dmr178083775ab.7.1735264378382; Thu, 26 Dec 2024 17:52:58 -0800 (PST) Date: Thu, 26 Dec 2024 17:52:58 -0800 In-Reply-To: <6763ae7b.050a0220.15da49.0007.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <676e087a.050a0220.2f3838.0476.GAE@google.com> Subject: Re: [syzbot] Re: [syzbot] [fs?] KASAN: slab-use-after-free Read in debugfs_u32_get From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [fs?] KASAN: slab-use-after-free Read in debugfs_u32_get Author: lizhi.xu@windriver.com #syz test diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 3e0b61202f0c..b679b3bb3459 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -1650,7 +1650,6 @@ static void nsim_dev_reload_destroy(struct nsim_dev *nsim_dev) if (devlink_is_reload_failed(devlink)) return; - debugfs_remove(nsim_dev->take_snapshot); if (nsim_dev_get_vfs(nsim_dev)) { nsim_bus_dev_set_vfs(nsim_dev->nsim_bus_dev, 0); @@ -1665,6 +1664,7 @@ static void nsim_dev_reload_destroy(struct nsim_dev *nsim_dev) nsim_fib_destroy(devlink, nsim_dev->fib_data); nsim_dev_traps_exit(devlink); nsim_dev_dummy_region_exit(nsim_dev); + nsim_dev_debugfs_exit(nsim_dev); } void nsim_drv_remove(struct nsim_bus_dev *nsim_bus_dev) @@ -1676,7 +1676,6 @@ void nsim_drv_remove(struct nsim_bus_dev *nsim_bus_dev) nsim_dev_reload_destroy(nsim_dev); nsim_bpf_dev_exit(nsim_dev); - nsim_dev_debugfs_exit(nsim_dev); devl_params_unregister(devlink, nsim_devlink_params, ARRAY_SIZE(nsim_devlink_params)); devl_resources_unregister(devlink);