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b=tKGF7EGIBrnE+lsLx9ko5dR/TwyjXnVJrI08MnXaK/0fBPSq5yt2tsJXfLL7wGUCW cV6Wo3GkUhKgHz/OxygbDESEggUz49uKVksaMyt30sUNCtlW9bhaulvHT7IzSkyfyj mK27581vJDjD4SzxyaiO7Tkq2OiJVbMhq9vMgLzI= Received: from pek-lxu-l1.wrs.com ([111.198.228.140]) by newxmesmtplogicsvrszc5-1.qq.com (NewEsmtp) with SMTP id C0FB2457; Thu, 21 Mar 2024 17:48:15 +0800 X-QQ-mid: xmsmtpt1711014495t1570eglk Message-ID: X-QQ-XMAILINFO: Mdc3TkmnJyI/VlmtfTzmjpg/xvw6jITExioCpsPAWTnxujqSYgHxHKRLAJCy4U WFRzmLBUFzvn226XTy5FGRtojjsTfEWzkuLxrFi8IZumYMJdC7vY+X9jjyE8j3LsTpe+m8089rQ8 AIb/gjGifMiQyPc7SL80LDm5PDhixUoBb0ojL5CobDsGYQXydJ9wdWHHptZeFTCENnLoESUsLaPO SaVoGmcrrlOTRrJY15KrhVRJL80mILX8MiPI+OaymAsurYKizO76VNU4i4G2bmgqwkwb6vfm7TFF lDx+dyfN2raBQyFzJ/nvrXsi9sFu1E0vVs3YQyA1BxEHIRSowb1VCbFohryrlLNn5J2QbpgowCLU mqlmspZD2tv1Ku3And9iVw5FJ+MGO+k1qHT+jFMHs9YCG1bMXeTxAjq2ep3jfK/hbm5p/bVw/0Vx qLvA2eNeEnVHnm0UYxAYslESK/hi7SS00oB9OhCpZIFvTKVCjZqcepGzIPKpHTk3+FbNu3guku+d qzdJQfUn+WFXDG2UDdG16QAEnJ2KitB61/FUNsDzRA8m7ynGlT7UDLLFJ3r1heX0PAxMd20x6Hjx CH3loMVMBkdaDB8CISEm6yX2gyrOIZjYMUjvCRcJr9CzySsXbXsvlCuB3Dn3a7iaWxRdaVwzmUZd fFUFKnuDndkiv5MCMHRhI1AMTlx9nwx5Rrz8BodRin7lcf9o5oCamIASWxdjNzYXa2ndoO9GtJwp dvVBNjqElqMM+oH6yMTE2YY3Tn07OYvMDn6/l9Eygp+gvlPEFX4LGhg6IBXLRcvy2S2DXhB1MHmT /DgwMtPyXzLmozeBRShDJBY/FZSbmqDgaM6mhHUnSRRuQprNVTs69LyLUPJA4gXHaQ4G6knhy3/K qHpsrgRoGdx+zb374EuClGdgPfAr3UESx6e8OxuRYF0fT+u+xfyjFy7cP2rrPW48JoK8lh+rgx X-QQ-XMRINFO: MSVp+SPm3vtS1Vd6Y4Mggwc= From: Edward Adam Davis To: syzbot+65f53dd6a0f7ad64c0cb@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [hfs?] KMSAN: uninit-value in hfs_find_1st_rec_by_cnid Date: Thu, 21 Mar 2024 17:48:16 +0800 X-OQ-MSGID: <20240321094815.2359097-2-eadavis@qq.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <0000000000008fd9bc061428179e@google.com> References: <0000000000008fd9bc061428179e@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit please test uninit-value in hfs_find_1st_rec_by_cnid #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master diff --git a/fs/hfsplus/bfind.c b/fs/hfsplus/bfind.c index ca2ba8c9f82e..b939dc879dac 100644 --- a/fs/hfsplus/bfind.c +++ b/fs/hfsplus/bfind.c @@ -18,7 +18,7 @@ int hfs_find_init(struct hfs_btree *tree, struct hfs_find_data *fd) fd->tree = tree; fd->bnode = NULL; - ptr = kmalloc(tree->max_key_len * 2 + 4, GFP_KERNEL); + ptr = kzalloc(tree->max_key_len * 2 + 4, GFP_KERNEL); if (!ptr) return -ENOMEM; fd->search_key = ptr;