From: Bui Quang Minh <minhquangbui99@gmail.com> To: Jesse Brandeburg <jesse.brandeburg@intel.com>, Tony Nguyen <anthony.l.nguyen@intel.com>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>, Rasesh Mody <rmody@marvell.com>, Sudarsana Kalluru <skalluru@marvell.com>, GR-Linux-NIC-Dev@marvell.com, Anil Gurumurthy <anil.gurumurthy@qlogic.com>, Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>, "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>, "Martin K. Petersen" <martin.petersen@oracle.com>, Fabian Frederick <fabf@skynet.be>, Saurav Kashyap <skashyap@marvell.com>, GR-QLogic-Storage-Upstream@marvell.com, Nilesh Javali <nilesh.javali@cavium.com>, Arun Easi <arun.easi@cavium.com>, Manish Rangankar <manish.rangankar@cavium.com>, Vineeth Vijayan <vneethv@linux.ibm.com>, Peter Oberparleiter <oberpar@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Alexander Gordeev <agordeev@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Sven Schnelle <svens@linux.ibm.com>, Sunil Goutham <sgoutham@marvell.com>, Linu Cherian <lcherian@marvell.com>, Geetha sowjanya <gakula@marvell.com>, Jerin Jacob <jerinj@marvell.com>, hariprasad <hkelam@marvell.com>, Subbaraya Sundeep <sbhatta@marvell.com> Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org, Saurav Kashyap <saurav.kashyap@cavium.com>, linux-s390@vger.kernel.org, Jens Axboe <axboe@kernel.dk>, Bui Quang Minh <minhquangbui99@gmail.com>, Przemek Kitszel <przemyslaw.kitszel@intel.com> Subject: [PATCH v2 1/6] ice: ensure the copied buf is NUL terminated Date: Wed, 24 Apr 2024 21:44:18 +0700 [thread overview] Message-ID: <20240424-fix-oob-read-v2-1-f1f1b53a10f4@gmail.com> (raw) In-Reply-To: <20240424-fix-oob-read-v2-0-f1f1b53a10f4@gmail.com> Currently, we allocate a count-sized kernel buffer and copy count bytes from userspace to that buffer. Later, we use sscanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using sscanf. Fix this issue by using memdup_user_nul instead of memdup_user. Fixes: 96a9a9341cda ("ice: configure FW logging") Fixes: 73671c3162c8 ("ice: enable FW logging") Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> --- drivers/net/ethernet/intel/ice/ice_debugfs.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_debugfs.c b/drivers/net/ethernet/intel/ice/ice_debugfs.c index d252d98218d0..9fc0fd95a13d 100644 --- a/drivers/net/ethernet/intel/ice/ice_debugfs.c +++ b/drivers/net/ethernet/intel/ice/ice_debugfs.c @@ -171,7 +171,7 @@ ice_debugfs_module_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 8) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); @@ -257,7 +257,7 @@ ice_debugfs_nr_messages_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 4) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); @@ -332,7 +332,7 @@ ice_debugfs_enable_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 2) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); @@ -428,7 +428,7 @@ ice_debugfs_log_size_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 5) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Bui Quang Minh <minhquangbui99@gmail.com> To: Jesse Brandeburg <jesse.brandeburg@intel.com>, Tony Nguyen <anthony.l.nguyen@intel.com>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>, Rasesh Mody <rmody@marvell.com>, Sudarsana Kalluru <skalluru@marvell.com>, GR-Linux-NIC-Dev@marvell.com, Anil Gurumurthy <anil.gurumurthy@qlogic.com>, Sudarsana Kalluru <sudarsana.kalluru@qlogic.com>, "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>, "Martin K. Petersen" <martin.petersen@oracle.com>, Fabian Frederick <fabf@skynet.be>, Saurav Kashyap <skashyap@marvell.com>, GR-QLogic-Storage-Upstream@marvell.com, Nilesh Javali <nilesh.javali@cavium.com>, Arun Easi <arun.easi@cavium.com>, Manish Rangankar <manish.rangankar@cavium.com>, Vineeth Vijayan <vneethv@linux.ibm.com>, Peter Oberparleiter <oberpar@linux.ibm.com>, Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Alexander Gordeev <agordeev@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Sven Schnelle <svens@linux.ibm.com>, Sunil Goutham <sgoutham@marvell.com>, Linu Cherian <lcherian@marvell.com>, Geetha sowjanya <gakula@marvell.com>, Jerin Jacob <jerinj@marvell.com>, hariprasad <hkelam@marvell.com>, Subbaraya Sundeep <sbhatta@marvell.com> Cc: Jens Axboe <axboe@kernel.dk>, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, intel-wired-lan@lists.osuosl.org, Przemek Kitszel <przemyslaw.kitszel@intel.com>, Saurav Kashyap <saurav.kashyap@cavium.com>, Bui Quang Minh <minhquangbui99@gmail.com> Subject: [Intel-wired-lan] [PATCH v2 1/6] ice: ensure the copied buf is NUL terminated Date: Wed, 24 Apr 2024 21:44:18 +0700 [thread overview] Message-ID: <20240424-fix-oob-read-v2-1-f1f1b53a10f4@gmail.com> (raw) In-Reply-To: <20240424-fix-oob-read-v2-0-f1f1b53a10f4@gmail.com> Currently, we allocate a count-sized kernel buffer and copy count bytes from userspace to that buffer. Later, we use sscanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using sscanf. Fix this issue by using memdup_user_nul instead of memdup_user. Fixes: 96a9a9341cda ("ice: configure FW logging") Fixes: 73671c3162c8 ("ice: enable FW logging") Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> --- drivers/net/ethernet/intel/ice/ice_debugfs.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_debugfs.c b/drivers/net/ethernet/intel/ice/ice_debugfs.c index d252d98218d0..9fc0fd95a13d 100644 --- a/drivers/net/ethernet/intel/ice/ice_debugfs.c +++ b/drivers/net/ethernet/intel/ice/ice_debugfs.c @@ -171,7 +171,7 @@ ice_debugfs_module_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 8) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); @@ -257,7 +257,7 @@ ice_debugfs_nr_messages_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 4) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); @@ -332,7 +332,7 @@ ice_debugfs_enable_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 2) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); @@ -428,7 +428,7 @@ ice_debugfs_log_size_write(struct file *filp, const char __user *buf, if (*ppos != 0 || count > 5) return -EINVAL; - cmd_buf = memdup_user(buf, count); + cmd_buf = memdup_user_nul(buf, count); if (IS_ERR(cmd_buf)) return PTR_ERR(cmd_buf); -- 2.34.1
next prev parent reply other threads:[~2024-04-24 14:44 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-24 14:44 [PATCH v2 0/6] Ensure the copied buf is NUL terminated Bui Quang Minh 2024-04-24 14:44 ` [Intel-wired-lan] " Bui Quang Minh 2024-04-24 14:44 ` Bui Quang Minh [this message] 2024-04-24 14:44 ` [Intel-wired-lan] [PATCH v2 1/6] ice: ensure " Bui Quang Minh 2024-04-24 14:44 ` [PATCH v2 2/6] bna: " Bui Quang Minh 2024-04-24 14:44 ` [Intel-wired-lan] " Bui Quang Minh 2024-04-24 14:44 ` [PATCH v2 3/6] bfa: " Bui Quang Minh 2024-04-24 14:44 ` [Intel-wired-lan] " Bui Quang Minh 2024-05-07 1:19 ` Martin K. Petersen 2024-05-07 1:19 ` [Intel-wired-lan] " Martin K. Petersen 2024-04-24 14:44 ` [PATCH v2 4/6] qedf: " Bui Quang Minh 2024-04-24 14:44 ` [Intel-wired-lan] " Bui Quang Minh 2024-05-07 1:20 ` Martin K. Petersen 2024-05-07 1:20 ` [Intel-wired-lan] " Martin K. Petersen 2024-04-24 14:44 ` [PATCH v2 5/6] cio: " Bui Quang Minh 2024-04-24 14:44 ` [Intel-wired-lan] " Bui Quang Minh 2024-04-24 14:54 ` Heiko Carstens 2024-04-24 14:54 ` [Intel-wired-lan] " Heiko Carstens 2024-04-24 15:16 ` Alexander Gordeev 2024-04-24 15:16 ` [Intel-wired-lan] " Alexander Gordeev 2024-04-26 10:10 ` Alexander Gordeev 2024-04-26 10:10 ` [Intel-wired-lan] " Alexander Gordeev 2024-04-26 14:29 ` Jakub Kicinski 2024-04-26 14:29 ` [Intel-wired-lan] " Jakub Kicinski 2024-04-24 14:44 ` [PATCH v2 6/6] octeontx2-af: avoid off-by-one read from userspace Bui Quang Minh 2024-04-24 14:44 ` [Intel-wired-lan] " Bui Quang Minh 2024-04-26 2:30 ` [PATCH v2 0/6] Ensure the copied buf is NUL terminated patchwork-bot+netdevbpf 2024-04-26 2:30 ` [Intel-wired-lan] " patchwork-bot+netdevbpf 2024-05-11 18:39 ` Martin K. Petersen 2024-05-11 18:39 ` [Intel-wired-lan] " Martin K. Petersen
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