This is a note to let you know that I've just added the patch titled Revert "rtnetlink: Reject negative ifindexes in RTM_NEWLINK" to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: revert-rtnetlink-reject-negative-ifindexes-in-rtm_newlink.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 8d271d77834f96bd04ff3a29eb688d4364eec009 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Date: Mon, 9 Oct 2023 20:25:00 +0200 Subject: Revert "rtnetlink: Reject negative ifindexes in RTM_NEWLINK" From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> This reverts commit 69197b2b2a7bcf92b209490639316af5dc751cc0 which is commit 30188bd7838c16a98a520db1fe9df01ffc6ed368 upstream. It was improperly backported to 4.14.y, and applied to the wrong function, which obviously causes problems. A fixed version will be applied as a separate commit later. Reported-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> Link: https://lore.kernel.org/r/ZSQeA8fhUT++iZvz@ostr-mac Cc: Ido Schimmel <idosch@xxxxxxxxxx> Cc: Jiri Pirko <jiri@xxxxxxxxxx> Cc: Jakub Kicinski <kuba@xxxxxxxxxx> Cc: Paolo Abeni <pabeni@xxxxxxxxxx> Cc: Sasha Levin <sashal@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- net/core/rtnetlink.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2311,10 +2311,7 @@ static int rtnl_setlink(struct sk_buff * ifm = nlmsg_data(nlh); if (ifm->ifi_index > 0) dev = __dev_get_by_index(net, ifm->ifi_index); - else if (ifm->ifi_index < 0) { - NL_SET_ERR_MSG(extack, "ifindex can't be negative"); - return -EINVAL; - } else if (tb[IFLA_IFNAME]) + else if (tb[IFLA_IFNAME]) dev = __dev_get_by_name(net, ifname); else goto errout; Patches currently in stable-queue which might be from gregkh@xxxxxxxxxxxxxxxxxxx are queue-4.14/net-sched-sch_hfsc-ensure-inner-classes-have-fsc-curve.patch queue-4.14/nilfs2-fix-potential-use-after-free-in-nilfs_gccache_submit_read_data.patch queue-4.14/rdma-mlx5-fix-null-string-error.patch queue-4.14/i2c-i801-unregister-tco_pdev-in-i801_probe-error-path.patch queue-4.14/ata-libata-sata-increase-pmp-srst-timeout-to-10s.patch queue-4.14/rdma-cma-fix-truncation-compilation-warning-in-make_cma_ports.patch queue-4.14/revert-rtnetlink-reject-negative-ifindexes-in-rtm_newlink.patch queue-4.14/gpio-aspeed-fix-the-gpio-number-passed-to-pinctrl_gpio_set_config.patch queue-4.14/fs-binfmt_elf_efpic-fix-personality-for-elf-fdpic.patch queue-4.14/media-dvb-symbol-fixup-for-dvb_attach-again.patch queue-4.14/ata-libata-core-fix-port-and-device-removal.patch queue-4.14/btrfs-properly-report-0-avail-for-very-full-file-systems.patch queue-4.14/ib-mlx4-fix-the-size-of-a-buffer-in-add_port_entries.patch queue-4.14/parisc-restore-__ldcw_align-for-pa-risc-2.0-processors.patch queue-4.14/ext4-fix-rec_len-verify-error.patch queue-4.14/ata-libata-disallow-dev-initiated-lpm-transitions-to-unsupported-states.patch queue-4.14/btrfs-reject-unknown-mount-options-early.patch queue-4.14/cpupower-add-makefile-dependencies-for-install-targets.patch queue-4.14/ata-libata-scsi-ignore-reserved-bits-for-report-supported-operation-codes.patch queue-4.14/vc_screen-reload-load-of-struct-vc_data-pointer-in-vcs_write-to-avoid-uaf.patch queue-4.14/wifi-mwifiex-fix-tlv_buf_left-calculation.patch queue-4.14/scsi-zfcp-fix-a-double-put-in-zfcp_port_enqueue.patch queue-4.14/ata-libata-core-fix-ata_port_request_pm-locking.patch queue-4.14/serial-8250_port-check-irq-data-before-use.patch