This is a note to let you know that I've just added the patch titled thunderbolt: Fix double free of drom buffer to the 4.5-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: thunderbolt-fix-double-free-of-drom-buffer.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 2ffa9a5d76a75abbc1f95c17959fced666095bdd Mon Sep 17 00:00:00 2001 From: Andreas Noever <andreas.noever@xxxxxxxxx> Date: Sun, 10 Apr 2016 12:48:27 +0200 Subject: thunderbolt: Fix double free of drom buffer From: Andreas Noever <andreas.noever@xxxxxxxxx> commit 2ffa9a5d76a75abbc1f95c17959fced666095bdd upstream. If tb_drom_read() fails, sw->drom is freed but not set to NULL. sw->drom is then freed again in the error path of tb_switch_alloc(). The bug can be triggered by unplugging a thunderbolt device shortly after it is detected by the thunderbolt driver. Clear sw->drom if tb_drom_read() fails. [bhelgaas: add Fixes:, stable versions of interest] Fixes: 343fcb8c70d7 ("thunderbolt: Fix nontrivial endpoint devices.") Signed-off-by: Andreas Noever <andreas.noever@xxxxxxxxx> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> CC: Lukas Wunner <lukas@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/thunderbolt/eeprom.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/thunderbolt/eeprom.c +++ b/drivers/thunderbolt/eeprom.c @@ -444,6 +444,7 @@ int tb_drom_read(struct tb_switch *sw) return tb_drom_parse_entries(sw); err: kfree(sw->drom); + sw->drom = NULL; return -EIO; } Patches currently in stable-queue which might be from andreas.noever@xxxxxxxxx are queue-4.5/thunderbolt-fix-double-free-of-drom-buffer.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html