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authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2022-07-29 21:03:27 +0300
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2022-08-09 03:04:51 +0300
commitb4443423278263d229dbeee12d09e657b78d64ab (patch)
treefa8950139d03c7764f0e513ff7de510e1df90b4c /net/bluetooth/hci_event.c
parentce78e557ff8819f2d10e8d6bae79404bfbbd6809 (diff)
downloadlinux-b4443423278263d229dbeee12d09e657b78d64ab.tar.xz
Bluetooth: ISO: Fix memory corruption
The following memory corruption can happen since iso_pinfo.base size did not account for its headers (4 bytes): net/bluetooth/eir.c 76 memcpy(&eir[eir_len], data, data_len); ^^^^^^^ ^^^^^^^^ 77 eir_len += data_len; 78 79 return eir_len; 80 } The "eir" buffer has 252 bytes and data_len is 252 but we do a memcpy() to &eir[4] so this can corrupt 4 bytes beyond the end of the buffer. Fixes: f764a6c2c1e4 ("Bluetooth: ISO: Add broadcast support") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Diffstat (limited to 'net/bluetooth/hci_event.c')
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