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zz-pve-efiboot: re-exec in mount namespace

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to avoid affecting the running system negatively, e.g. because the
target paths for mounting the ESPs have been modified via symlinks or
similar attacks.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler 2019-07-11 11:22:50 +02:00 committed by Thomas Lamprecht
parent 7800310ce5
commit cfb0e459ea
1 changed files with 2 additions and 0 deletions
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efiboot/zz-pve-efiboot
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@ -151,10 +151,12 @@ case $0:$mode in
# Also run if we have no DEB_MAINT_PARAMS, in order to work with old
# kernel packages.
*/postinst.d/*:|*/postinst.d/*:configure)
reexec_in_mountns "$@"
BOOT_KVERS="$(boot_kernel_list "$@")"
update_esps
;;
*/postrm.d/*:|*/postrm.d/*:remove)
reexec_in_mountns "$@"
# no newly installed kernel
BOOT_KVERS="$(boot_kernel_list)"
update_esps