From: Andy Green <andy@warmcat.com> To: dev@dpdk.org Subject: [dpdk-dev] [PATCH 02/18] drivers: bus: pci: fix strncpy dangerous code Date: Tue, 08 May 2018 12:29:38 +0800 Message-ID: <152575377810.56689.13705223191364412484.stgit@localhost.localdomain> (raw) In-Reply-To: <152575364588.56689.3300796065057551728.stgit@localhost.localdomain> In function ‘pci_get_kernel_driver_by_path’, inlined from ‘pci_scan_one.isra.1’ at /home/agreen/projects/dpdk/drivers/bus/pci/linux/pci.c:317:8: /home/agreen/projects/dpdk/drivers/bus/pci/linux/pci.c:57:3: error: ‘strncpy’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=] strncpy(dri_name, name + 1, strlen(name + 1) + 1); --- drivers/bus/pci/linux/pci.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/bus/pci/linux/pci.c b/drivers/bus/pci/linux/pci.c index 4630a8057..b5bdfd33e 100644 --- a/drivers/bus/pci/linux/pci.c +++ b/drivers/bus/pci/linux/pci.c @@ -54,7 +54,8 @@ pci_get_kernel_driver_by_path(const char *filename, char *dri_name) name = strrchr(path, '/'); if (name) { - strncpy(dri_name, name + 1, strlen(name + 1) + 1); + strncpy(dri_name, name + 1, sizeof(dri_name) - 1); + dri_name[sizeof(dri_name) - 1] = '\0'; return 0; }
next prev parent reply other threads:[~2018-05-08 4:29 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-05-08 4:29 [dpdk-dev] [PATCH 00/18] Fix build on gcc8 and various bugs Andy Green 2018-05-08 4:29 ` [dpdk-dev] [PATCH 01/18] lib: ret_table: workaround hash function cast error Andy Green 2018-05-08 4:29 ` Andy Green [this message] 2018-05-08 8:57 ` [dpdk-dev] [PATCH 02/18] drivers: bus: pci: fix strncpy dangerous code Bruce Richardson 2018-05-08 4:29 ` [dpdk-dev] [PATCH 03/18] drivers: bus: dpaa: fix inconsistent struct alignment Andy Green 2018-05-08 4:29 ` [dpdk-dev] [PATCH 04/18] drivers: net: axgbe: fix broken eeprom string comp Andy Green 2018-05-08 4:29 ` [dpdk-dev] [PATCH 05/18] drivers: net: nfp: nfpcore: fix strncpy misuse Andy Green 2018-05-08 8:58 ` Bruce Richardson 2018-05-08 9:00 ` Andy Green 2018-05-08 9:03 ` Bruce Richardson 2018-05-08 4:29 ` [dpdk-dev] [PATCH 06/18] drivers: net: nfp: nfpcore fix off-by-one and no NUL on strncpy use Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 07/18] drivers: net: nfp: don't memcpy out of source range Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 08/18] drivers: net: nfp: fix buffer overflow in fw_name Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 09/18] drivers: net: qede: fix strncpy constant and NUL Andy Green 2018-05-08 17:59 ` Shaikh, Shahed 2018-05-08 19:53 ` Bruce Richardson 2018-05-08 20:02 ` Shaikh, Shahed 2018-05-08 22:07 ` Andy Green 2018-05-08 23:33 ` Shaikh, Shahed 2018-05-08 4:30 ` [dpdk-dev] [PATCH 10/18] drivers: net: qede: fix broken strncpy Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 11/18] drivers:net:sfc: fix strncpy length Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 12/18] drivers: net: sfc: fix another strncpy size and NUL Andy Green 2018-05-08 7:36 ` Andrew Rybchenko 2018-05-08 8:18 ` Andy Green 2018-05-08 9:02 ` Bruce Richardson 2018-05-08 9:08 ` Andrew Rybchenko 2018-05-08 4:30 ` [dpdk-dev] [PATCH 13/18] drivers: net: vdev: readlink inputs cannot be aliased Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 14/18] drivers: net: vdev: fix 3 x strncpy misuse Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 15/18] test-pmd: can't find include Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 16/18] app: fix sprintf overrun bug Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 17/18] app: test-bbdev: strcpy ok for allocated string Andy Green 2018-05-08 4:30 ` [dpdk-dev] [PATCH 18/18] app: test-bbdev: strcpy ok for allocated string 2 Andy Green
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=152575377810.56689.13705223191364412484.stgit@localhost.localdomain \ --to=andy@warmcat.com \ --cc=dev@dpdk.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: link
DPDK patches and discussions This inbox may be cloned and mirrored by anyone: git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git # If you have public-inbox 1.1+ installed, you may # initialize and index your mirror using the following commands: public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \ dev@dpdk.org public-inbox-index dev Example config snippet for mirrors. Newsgroup available over NNTP: nntp://inbox.dpdk.org/inbox.dpdk.dev AGPL code for this site: git clone https://public-inbox.org/public-inbox.git