Public bug reported:
Qemu fails silently with exit code 1 when using daemonize and the
sandbox option elevateprivileges=deny. This behavior got introduced by
0546c0609cb5a8d90c1cbac8e0d64b5a048bbb19 where the sandbox options gets
parsed and enforced *before* daemonizing. Since the os_daemonize libc-
call uses the syscall setsid, qemu gets killed by the signal 13
(SIGSYS).
What I expected:
- a hint in the documentation of the flags that elevateprivileges AND daemonize
contradict -or-
- working combination
Reproducer:
$ qemu-system-x86_64 -sandbox on,elevateprivileges=deny -daemonize
Package: 1:6.2+dfsg-2ubuntu5
Ubuntu Version: 22.04 (Jammy Jellyfish)
dmesg:
[ 181.064898] audit: type=1326 audit(1646924855.830:13): auid=0 uid=0 gid=0
ses=1 subj=? pid=3622 comm="qemu-system-x86" exe="/usr/bin/qemu-system-x86_64"
sig=31 arch=c000003e syscall=112 compat=0 ip=0x7f725964f40b code=0x80000000
Coredump:
PID: 4402 (qemu-system-x86)
UID: 0 (root)
GID: 0 (root)
Signal: 31 (SYS)
Timestamp: Thu 2022-03-10 15:10:37 UTC (37s ago)
Command Line: qemu-system-x86_64 -sandbox on,elevateprivileges=deny -daemonize
Executable: /usr/bin/qemu-system-x86_64
Control Group: /user.slice/user-0.slice/session-1.scope
Unit: session-1.scope
Slice: user-0.slice
Session: 1
Owner UID: 0 (root)
Boot ID: 3cdf72ff261640e3a3f9e887d159bb2a
Machine ID: 72874f2d047d4c87887abbc727924413
Hostname: raphael-20220310-145731
Storage:
/var/lib/systemd/coredump/core.qemu-system-x86.0.3cdf72ff261640e3a3f9e887d159bb2a.4402.1646925037000000.zst
(present)
Disk Size: 405.6K
Message: Process 4402 (qemu-system-x86) of user 0 dumped core.
Found module linux-vdso.so.1 with build-id:
aea445f382fbc134b3bc979d61dd291e78bea882
Found module libcrypto.so.3 with build-id:
16bbb788a98f53a5cd5ce19936946a279603f77a
Found module liblzma.so.5 with build-id:
3eeacec54c1e109d7486961e9b56c01023dd492e
Found module libpcre2-8.so.0 with build-id:
730c613f1746c1ddfca8a4420385ac363e86e2a2
Found module libblkid.so.1 with build-id:
cdf95a964e3302bb356fefc4b801fae8c4340b31
Found module libkmod.so.2 with build-id:
c8ac4bc8d0fe03ceb8cad8d24484c5cbad9daf5a
Found module libuuid.so.1 with build-id:
64c0d0cb22fa2bdeca075a0c0418ba5ff314b220
Found module libnl-route-3.so.200 with build-id:
0d1ec15c789fe7cc860df8d8d2004a6c7b03c2a3
Found module libnl-3.so.200 with build-id:
63256316bd1135d4745d740781b42ca55f77a24f
Found module libpcre.so.3 with build-id:
56ddb828685e501f1498130d1cc7f51c242554c1
Found module libffi.so.8 with build-id:
59c2a6b204f74f358ca7711d2dfd349d88711f6a
Found module libselinux.so.1 with build-id:
2195967b677f320e35e0cdafe08a4713bc2a95e8
Found module libmount.so.1 with build-id:
eeb33f2b4b9c3eb0a29575eb9932ef08663bd836
Found module libdaxctl.so.1 with build-id:
f7dfbca3d72bc7ba36d6b60a28119269f2504db2
Found module libndctl.so.6 with build-id:
22fb97cc03c9bc2e81c12c5e1f82973cfea86338
Found module libgmp.so.10 with build-id:
f110719303ddbea25a5e89ff730fec520eed67b0
Found module libhogweed.so.6 with build-id:
01a0b20878b525a7a33197fc23b738654682f3c4
Found module libtasn1.so.6 with build-id:
efacd0b1b8ccb481fcb501cf76cf07cb2c444d45
Found module libunistring.so.2 with build-id:
ca5149da8d5a298b8f286ffca3d6e2402ec0fe01
Found module libidn2.so.0 with build-id:
f477d28cad4d54daee0070cd4949f0487ac93afc
Found module libp11-kit.so.0 with build-id:
6e579cbca24932056e99bb54557cd5a1234811ea
Found module ld-linux-x86-64.so.2 with build-id:
c83a452679d23179c2ddd07c5c25d182e54908df
Found module libc.so.6 with build-id:
094a2d85f72e893d0c15a66812d51d5493e30860
Found module libgcc_s.so.1 with build-id:
443a1e5dd16a55fd142e5e5fcdc544ba2052dda0
Found module libm.so.6 with build-id:
a9832e9d3a777fc99a89d92e359eec6395deca29
Found module libaio.so.1 with build-id:
a21eb19f17dd68947804f035aa6c27cd73a70439
Found module libfuse3.so.3 with build-id:
d45830188e873e270f28ab91f11e6fc7d7b2159c
Found module libnettle.so.8 with build-id:
89ee6d2af3edfaf90640d96b94afcef1e43d74a2
Found module libgmodule-2.0.so.0 with build-id:
d64002b7a12e58f579eecf952daeb61435f8f343
Found module liburing.so.2 with build-id:
976771a582fd2e5c62faff76c026b09eaf3335a0
Found module libudev.so.1 with build-id:
ffd1278cf71c4c9c09bac7cdefac3d58b9e1d1f8
Found module libslirp.so.0 with build-id:
ccb8518051352845e15c5702d534bfb703b683d3
Found module libzstd.so.1 with build-id:
b5600f7bc62e7915ed7199c8c486e3ff3af0ce16
Found module libibverbs.so.1 with build-id:
b562c2bac28667351afdd7bd49ac534d118c4f6e
Found module librdmacm.so.1 with build-id:
72f988fe1f74a0241f65f4cd16ed26df6279920c
Found module libglib-2.0.so.0 with build-id:
fb79c175ac99bf40796a1e2c66c4e2bd24aaeeaa
Found module libgobject-2.0.so.0 with build-id:
bb28703f64aac29648fdf9ee790291dc2e8f309d
Found module libgio-2.0.so.0 with build-id:
8061f2c2287fdb8e35f0dcd0d8cd37f1628478f8
Found module libnuma.so.1 with build-id:
0bc332b68b3900db9579c7e29fd534de7250b43e
Found module libfdt.so.1 with build-id:
6f636bd87d7fabc7e33e0bb5f813e9c457f65095
Found module libseccomp.so.2 with build-id:
50e714eb138a4a1a38f41f084aefb51d6a9ebf1c
Found module libpmem.so.1 with build-id:
dee04fd8f01a6c80d81a2e9eec986a30c459ab32
Found module libsasl2.so.2 with build-id:
562c038e4a5a2196c9c085cd1f9276e3641399a6
Found module libgnutls.so.30 with build-id:
843b60988232157225bc1f0a293321992abd107b
Found module libjpeg.so.8 with build-id:
c54abff9294357e28532a76a049a4cb2542fc15b
Found module libpng16.so.16 with build-id:
44f16132c2457c1289f64093e541ed4036be19ec
Found module libz.so.1 with build-id:
ef650611451904165e9caf6080ecbaad50b84d3f
Found module libpixman-1.so.0 with build-id:
da7de7a61faeedaec7d25546ac1b0a9d4f141651
Found module qemu-system-x86_64 with build-id:
5cb2521c24e8f3bd7d22a87f13fafc0ba539a8b4
Stack trace of thread 4402:
#0 0x00007faf4337d40b setsid (libc.so.6 + 0xf040b)
#1 0x000055afe3467128 os_daemonize (qemu-system-x86_64 +
0x848128)
#2 0x000055afe3314fe3 qemu_init (qemu-system-x86_64 + 0x6f5fe3)
#3 0x000055afe3008fdd main (qemu-system-x86_64 + 0x3e9fdd)
#4 0x00007faf432bad90 n/a (libc.so.6 + 0x2dd90)
#5 0x00007faf432bae40 __libc_start_main (libc.so.6 + 0x2de40)
#6 0x000055afe300b955 _start (qemu-system-x86_64 + 0x3ec955)
Stack trace of thread 4403:
#0 0x00007faf433b7b6d n/a (libc.so.6 + 0x12ab6d)
** Affects: qemu (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "coredump"
https://bugs.launchpad.net/bugs/1964488/+attachment/5567734/+files/core.qemu-system-x86.0.3cdf72ff261640e3a3f9e887d159bb2a.4402.1646925037000000
** Description changed:
Qemu fails silently with exit code 1 when using daemonize and the
sandbox option elevateprivileges=deny. This behavior got introduced by
0546c0609cb5a8d90c1cbac8e0d64b5a048bbb19 where the sandbox options gets
parsed and enforced *before* daemonizing. Since the os_daemonize libc-
call uses the syscall setsid, qemu gets killed by the signal 13
(SIGSYS).
What I expected:
- - a hint in the documentation of the flags -or-
+ - a hint in the documentation of the flags that elevateprivileges AND
daemonize contradict -or-
- working combination
Reproducer:
$ qemu-system-x86_64 -sandbox on,elevateprivileges=deny -daemonize
Package: 1:6.2+dfsg-2ubuntu5
Ubuntu Version: 22.04 (Jammy Jellyfish)
dmesg:
[ 181.064898] audit: type=1326 audit(1646924855.830:13): auid=0 uid=0 gid=0
ses=1 subj=? pid=3622 comm="qemu-system-x86" exe="/usr/bin/qemu-system-x86_64"
sig=31 arch=c000003e syscall=112 compat=0 ip=0x7f725964f40b code=0x80000000
Coredump:
- PID: 4402 (qemu-system-x86)
- UID: 0 (root)
- GID: 0 (root)
- Signal: 31 (SYS)
- Timestamp: Thu 2022-03-10 15:10:37 UTC (37s ago)
- Command Line: qemu-system-x86_64 -sandbox on,elevateprivileges=deny
-daemonize
- Executable: /usr/bin/qemu-system-x86_64
- Control Group: /user.slice/user-0.slice/session-1.scope
- Unit: session-1.scope
- Slice: user-0.slice
- Session: 1
- Owner UID: 0 (root)
- Boot ID: 3cdf72ff261640e3a3f9e887d159bb2a
- Machine ID: 72874f2d047d4c87887abbc727924413
- Hostname: raphael-20220310-145731
- Storage:
/var/lib/systemd/coredump/core.qemu-system-x86.0.3cdf72ff261640e3a3f9e887d159bb2a.4402.1646925037000000.zst
(present)
- Disk Size: 405.6K
- Message: Process 4402 (qemu-system-x86) of user 0 dumped core.
-
- Found module linux-vdso.so.1 with build-id:
aea445f382fbc134b3bc979d61dd291e78bea882
- Found module libcrypto.so.3 with build-id:
16bbb788a98f53a5cd5ce19936946a279603f77a
- Found module liblzma.so.5 with build-id:
3eeacec54c1e109d7486961e9b56c01023dd492e
- Found module libpcre2-8.so.0 with build-id:
730c613f1746c1ddfca8a4420385ac363e86e2a2
- Found module libblkid.so.1 with build-id:
cdf95a964e3302bb356fefc4b801fae8c4340b31
- Found module libkmod.so.2 with build-id:
c8ac4bc8d0fe03ceb8cad8d24484c5cbad9daf5a
- Found module libuuid.so.1 with build-id:
64c0d0cb22fa2bdeca075a0c0418ba5ff314b220
- Found module libnl-route-3.so.200 with build-id:
0d1ec15c789fe7cc860df8d8d2004a6c7b03c2a3
- Found module libnl-3.so.200 with build-id:
63256316bd1135d4745d740781b42ca55f77a24f
- Found module libpcre.so.3 with build-id:
56ddb828685e501f1498130d1cc7f51c242554c1
- Found module libffi.so.8 with build-id:
59c2a6b204f74f358ca7711d2dfd349d88711f6a
- Found module libselinux.so.1 with build-id:
2195967b677f320e35e0cdafe08a4713bc2a95e8
- Found module libmount.so.1 with build-id:
eeb33f2b4b9c3eb0a29575eb9932ef08663bd836
- Found module libdaxctl.so.1 with build-id:
f7dfbca3d72bc7ba36d6b60a28119269f2504db2
- Found module libndctl.so.6 with build-id:
22fb97cc03c9bc2e81c12c5e1f82973cfea86338
- Found module libgmp.so.10 with build-id:
f110719303ddbea25a5e89ff730fec520eed67b0
- Found module libhogweed.so.6 with build-id:
01a0b20878b525a7a33197fc23b738654682f3c4
- Found module libtasn1.so.6 with build-id:
efacd0b1b8ccb481fcb501cf76cf07cb2c444d45
- Found module libunistring.so.2 with build-id:
ca5149da8d5a298b8f286ffca3d6e2402ec0fe01
- Found module libidn2.so.0 with build-id:
f477d28cad4d54daee0070cd4949f0487ac93afc
- Found module libp11-kit.so.0 with build-id:
6e579cbca24932056e99bb54557cd5a1234811ea
- Found module ld-linux-x86-64.so.2 with build-id:
c83a452679d23179c2ddd07c5c25d182e54908df
- Found module libc.so.6 with build-id:
094a2d85f72e893d0c15a66812d51d5493e30860
- Found module libgcc_s.so.1 with build-id:
443a1e5dd16a55fd142e5e5fcdc544ba2052dda0
- Found module libm.so.6 with build-id:
a9832e9d3a777fc99a89d92e359eec6395deca29
- Found module libaio.so.1 with build-id:
a21eb19f17dd68947804f035aa6c27cd73a70439
- Found module libfuse3.so.3 with build-id:
d45830188e873e270f28ab91f11e6fc7d7b2159c
- Found module libnettle.so.8 with build-id:
89ee6d2af3edfaf90640d96b94afcef1e43d74a2
- Found module libgmodule-2.0.so.0 with build-id:
d64002b7a12e58f579eecf952daeb61435f8f343
- Found module liburing.so.2 with build-id:
976771a582fd2e5c62faff76c026b09eaf3335a0
- Found module libudev.so.1 with build-id:
ffd1278cf71c4c9c09bac7cdefac3d58b9e1d1f8
- Found module libslirp.so.0 with build-id:
ccb8518051352845e15c5702d534bfb703b683d3
- Found module libzstd.so.1 with build-id:
b5600f7bc62e7915ed7199c8c486e3ff3af0ce16
- Found module libibverbs.so.1 with build-id:
b562c2bac28667351afdd7bd49ac534d118c4f6e
- Found module librdmacm.so.1 with build-id:
72f988fe1f74a0241f65f4cd16ed26df6279920c
- Found module libglib-2.0.so.0 with build-id:
fb79c175ac99bf40796a1e2c66c4e2bd24aaeeaa
- Found module libgobject-2.0.so.0 with build-id:
bb28703f64aac29648fdf9ee790291dc2e8f309d
- Found module libgio-2.0.so.0 with build-id:
8061f2c2287fdb8e35f0dcd0d8cd37f1628478f8
- Found module libnuma.so.1 with build-id:
0bc332b68b3900db9579c7e29fd534de7250b43e
- Found module libfdt.so.1 with build-id:
6f636bd87d7fabc7e33e0bb5f813e9c457f65095
- Found module libseccomp.so.2 with build-id:
50e714eb138a4a1a38f41f084aefb51d6a9ebf1c
- Found module libpmem.so.1 with build-id:
dee04fd8f01a6c80d81a2e9eec986a30c459ab32
- Found module libsasl2.so.2 with build-id:
562c038e4a5a2196c9c085cd1f9276e3641399a6
- Found module libgnutls.so.30 with build-id:
843b60988232157225bc1f0a293321992abd107b
- Found module libjpeg.so.8 with build-id:
c54abff9294357e28532a76a049a4cb2542fc15b
- Found module libpng16.so.16 with build-id:
44f16132c2457c1289f64093e541ed4036be19ec
- Found module libz.so.1 with build-id:
ef650611451904165e9caf6080ecbaad50b84d3f
- Found module libpixman-1.so.0 with build-id:
da7de7a61faeedaec7d25546ac1b0a9d4f141651
- Found module qemu-system-x86_64 with build-id:
5cb2521c24e8f3bd7d22a87f13fafc0ba539a8b4
- Stack trace of thread 4402:
- #0 0x00007faf4337d40b setsid (libc.so.6 + 0xf040b)
- #1 0x000055afe3467128 os_daemonize (qemu-system-x86_64 +
0x848128)
- #2 0x000055afe3314fe3 qemu_init (qemu-system-x86_64 +
0x6f5fe3)
- #3 0x000055afe3008fdd main (qemu-system-x86_64 + 0x3e9fdd)
- #4 0x00007faf432bad90 n/a (libc.so.6 + 0x2dd90)
- #5 0x00007faf432bae40 __libc_start_main (libc.so.6 + 0x2de40)
- #6 0x000055afe300b955 _start (qemu-system-x86_64 + 0x3ec955)
-
- Stack trace of thread 4403:
- #0 0x00007faf433b7b6d n/a (libc.so.6 + 0x12ab6d)
+ PID: 4402 (qemu-system-x86)
+ UID: 0 (root)
+ GID: 0 (root)
+ Signal: 31 (SYS)
+ Timestamp: Thu 2022-03-10 15:10:37 UTC (37s ago)
+ Command Line: qemu-system-x86_64 -sandbox on,elevateprivileges=deny
-daemonize
+ Executable: /usr/bin/qemu-system-x86_64
+ Control Group: /user.slice/user-0.slice/session-1.scope
+ Unit: session-1.scope
+ Slice: user-0.slice
+ Session: 1
+ Owner UID: 0 (root)
+ Boot ID: 3cdf72ff261640e3a3f9e887d159bb2a
+ Machine ID: 72874f2d047d4c87887abbc727924413
+ Hostname: raphael-20220310-145731
+ Storage:
/var/lib/systemd/coredump/core.qemu-system-x86.0.3cdf72ff261640e3a3f9e887d159bb2a.4402.1646925037000000.zst
(present)
+ Disk Size: 405.6K
+ Message: Process 4402 (qemu-system-x86) of user 0 dumped core.
+
+ Found module linux-vdso.so.1 with build-id:
aea445f382fbc134b3bc979d61dd291e78bea882
+ Found module libcrypto.so.3 with build-id:
16bbb788a98f53a5cd5ce19936946a279603f77a
+ Found module liblzma.so.5 with build-id:
3eeacec54c1e109d7486961e9b56c01023dd492e
+ Found module libpcre2-8.so.0 with build-id:
730c613f1746c1ddfca8a4420385ac363e86e2a2
+ Found module libblkid.so.1 with build-id:
cdf95a964e3302bb356fefc4b801fae8c4340b31
+ Found module libkmod.so.2 with build-id:
c8ac4bc8d0fe03ceb8cad8d24484c5cbad9daf5a
+ Found module libuuid.so.1 with build-id:
64c0d0cb22fa2bdeca075a0c0418ba5ff314b220
+ Found module libnl-route-3.so.200 with build-id:
0d1ec15c789fe7cc860df8d8d2004a6c7b03c2a3
+ Found module libnl-3.so.200 with build-id:
63256316bd1135d4745d740781b42ca55f77a24f
+ Found module libpcre.so.3 with build-id:
56ddb828685e501f1498130d1cc7f51c242554c1
+ Found module libffi.so.8 with build-id:
59c2a6b204f74f358ca7711d2dfd349d88711f6a
+ Found module libselinux.so.1 with build-id:
2195967b677f320e35e0cdafe08a4713bc2a95e8
+ Found module libmount.so.1 with build-id:
eeb33f2b4b9c3eb0a29575eb9932ef08663bd836
+ Found module libdaxctl.so.1 with build-id:
f7dfbca3d72bc7ba36d6b60a28119269f2504db2
+ Found module libndctl.so.6 with build-id:
22fb97cc03c9bc2e81c12c5e1f82973cfea86338
+ Found module libgmp.so.10 with build-id:
f110719303ddbea25a5e89ff730fec520eed67b0
+ Found module libhogweed.so.6 with build-id:
01a0b20878b525a7a33197fc23b738654682f3c4
+ Found module libtasn1.so.6 with build-id:
efacd0b1b8ccb481fcb501cf76cf07cb2c444d45
+ Found module libunistring.so.2 with build-id:
ca5149da8d5a298b8f286ffca3d6e2402ec0fe01
+ Found module libidn2.so.0 with build-id:
f477d28cad4d54daee0070cd4949f0487ac93afc
+ Found module libp11-kit.so.0 with build-id:
6e579cbca24932056e99bb54557cd5a1234811ea
+ Found module ld-linux-x86-64.so.2 with build-id:
c83a452679d23179c2ddd07c5c25d182e54908df
+ Found module libc.so.6 with build-id:
094a2d85f72e893d0c15a66812d51d5493e30860
+ Found module libgcc_s.so.1 with build-id:
443a1e5dd16a55fd142e5e5fcdc544ba2052dda0
+ Found module libm.so.6 with build-id:
a9832e9d3a777fc99a89d92e359eec6395deca29
+ Found module libaio.so.1 with build-id:
a21eb19f17dd68947804f035aa6c27cd73a70439
+ Found module libfuse3.so.3 with build-id:
d45830188e873e270f28ab91f11e6fc7d7b2159c
+ Found module libnettle.so.8 with build-id:
89ee6d2af3edfaf90640d96b94afcef1e43d74a2
+ Found module libgmodule-2.0.so.0 with build-id:
d64002b7a12e58f579eecf952daeb61435f8f343
+ Found module liburing.so.2 with build-id:
976771a582fd2e5c62faff76c026b09eaf3335a0
+ Found module libudev.so.1 with build-id:
ffd1278cf71c4c9c09bac7cdefac3d58b9e1d1f8
+ Found module libslirp.so.0 with build-id:
ccb8518051352845e15c5702d534bfb703b683d3
+ Found module libzstd.so.1 with build-id:
b5600f7bc62e7915ed7199c8c486e3ff3af0ce16
+ Found module libibverbs.so.1 with build-id:
b562c2bac28667351afdd7bd49ac534d118c4f6e
+ Found module librdmacm.so.1 with build-id:
72f988fe1f74a0241f65f4cd16ed26df6279920c
+ Found module libglib-2.0.so.0 with build-id:
fb79c175ac99bf40796a1e2c66c4e2bd24aaeeaa
+ Found module libgobject-2.0.so.0 with build-id:
bb28703f64aac29648fdf9ee790291dc2e8f309d
+ Found module libgio-2.0.so.0 with build-id:
8061f2c2287fdb8e35f0dcd0d8cd37f1628478f8
+ Found module libnuma.so.1 with build-id:
0bc332b68b3900db9579c7e29fd534de7250b43e
+ Found module libfdt.so.1 with build-id:
6f636bd87d7fabc7e33e0bb5f813e9c457f65095
+ Found module libseccomp.so.2 with build-id:
50e714eb138a4a1a38f41f084aefb51d6a9ebf1c
+ Found module libpmem.so.1 with build-id:
dee04fd8f01a6c80d81a2e9eec986a30c459ab32
+ Found module libsasl2.so.2 with build-id:
562c038e4a5a2196c9c085cd1f9276e3641399a6
+ Found module libgnutls.so.30 with build-id:
843b60988232157225bc1f0a293321992abd107b
+ Found module libjpeg.so.8 with build-id:
c54abff9294357e28532a76a049a4cb2542fc15b
+ Found module libpng16.so.16 with build-id:
44f16132c2457c1289f64093e541ed4036be19ec
+ Found module libz.so.1 with build-id:
ef650611451904165e9caf6080ecbaad50b84d3f
+ Found module libpixman-1.so.0 with build-id:
da7de7a61faeedaec7d25546ac1b0a9d4f141651
+ Found module qemu-system-x86_64 with build-id:
5cb2521c24e8f3bd7d22a87f13fafc0ba539a8b4
+ Stack trace of thread 4402:
+ #0 0x00007faf4337d40b setsid (libc.so.6 + 0xf040b)
+ #1 0x000055afe3467128 os_daemonize (qemu-system-x86_64 +
0x848128)
+ #2 0x000055afe3314fe3 qemu_init (qemu-system-x86_64 +
0x6f5fe3)
+ #3 0x000055afe3008fdd main (qemu-system-x86_64 + 0x3e9fdd)
+ #4 0x00007faf432bad90 n/a (libc.so.6 + 0x2dd90)
+ #5 0x00007faf432bae40 __libc_start_main (libc.so.6 + 0x2de40)
+ #6 0x000055afe300b955 _start (qemu-system-x86_64 + 0x3ec955)
+
+ Stack trace of thread 4403:
+ #0 0x00007faf433b7b6d n/a (libc.so.6 + 0x12ab6d)
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https://bugs.launchpad.net/bugs/1964488
Title:
Qemu fails with daemonize and enabled elevateprivileges
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