mirror of https://github.com/torvalds/linux.git
b36a1552d7
Certain ttys operations (pty_unix98_ops) lack tiocmget() and tiocmset() functions which are called by the certain HCI UART protocols (hci_ath, hci_bcm, hci_intel, hci_mrvl, hci_qca) via hci_uart_set_flow_control() or directly. This leads to an execution at NULL and can be triggered by an unprivileged user. Fix this by adding a helper function and a check for the missing tty operations in the protocols code. This fixes CVE-2019-10207. The Fixes: lines list commits where calls to tiocm[gs]et() or hci_uart_set_flow_control() were added to the HCI UART protocols. Link: https://syzkaller.appspot.com/bug?id=1b42faa2848963564a5b1b7f8c837ea7b55ffa50 Reported-by: syzbot+79337b501d6aa974d0f6@syzkaller.appspotmail.com Cc: stable@vger.kernel.org # v2.6.36+ Fixes: |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| ath3k.c | ||
| bcm203x.c | ||
| bfusb.c | ||
| bluecard_cs.c | ||
| bpa10x.c | ||
| bt3c_cs.c | ||
| btbcm.c | ||
| btbcm.h | ||
| btintel.c | ||
| btintel.h | ||
| btmrvl_debugfs.c | ||
| btmrvl_drv.h | ||
| btmrvl_main.c | ||
| btmrvl_sdio.c | ||
| btmrvl_sdio.h | ||
| btmtksdio.c | ||
| btmtkuart.c | ||
| btqca.c | ||
| btqca.h | ||
| btqcomsmd.c | ||
| btrsi.c | ||
| btrtl.c | ||
| btrtl.h | ||
| btsdio.c | ||
| btusb.c | ||
| btwilink.c | ||
| dtl1_cs.c | ||
| h4_recv.h | ||
| hci_ag6xx.c | ||
| hci_ath.c | ||
| hci_bcm.c | ||
| hci_bcsp.c | ||
| hci_h4.c | ||
| hci_h5.c | ||
| hci_intel.c | ||
| hci_ldisc.c | ||
| hci_ll.c | ||
| hci_mrvl.c | ||
| hci_nokia.c | ||
| hci_qca.c | ||
| hci_serdev.c | ||
| hci_uart.h | ||
| hci_vhci.c | ||