[Bug 2032577] Re: xz segfault error in liblzma.so.5.2.5
Benjamin Drung
2032577 at bugs.launchpad.net
Thu Sep 21 08:36:32 UTC 2023
Attached is the retraced crash.
** Attachment added: "retraced_usr_bin_xz.0.crash"
https://bugs.launchpad.net/ubuntu/+source/xz-utils/+bug/2032577/+attachment/5702596/+files/retraced_usr_bin_xz.0.crash
** Changed in: xz-utils (Ubuntu)
Status: Incomplete => New
** Description changed:
- xz segfaults. More details in
+ xz segfaults. More details in
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2032379
-
From Dmesg.txt on that report
[114838.184191] xz[431483]: segfault at 7f9a93f3701a ip 00007f9b3f780c1a
sp 00007f9a957baa50 error 4 in liblzma.so.5.2.5[7f9b3f771000+1b000]
+
+ ProblemType: Crash
+ ApportVersion: 2.20.11-0ubuntu82.5
+ Architecture: amd64
+ CasperMD5CheckResult: unknown
+ DistroRelease: Ubuntu 22.04
+ ExecutablePath: /usr/bin/xz
+ ExecutableTimestamp: 1649422298
+ InstallationDate: Installed on 2021-04-09 (863 days ago)
+ InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
+ Package: xz-utils 5.2.5-2ubuntu1
+ ProcCmdline: xz --check=crc32 --threads=0 -c /var/tmp/mkinitramfs-MAIN_E1GbD9
+ ProcCwd: /
+ ProcEnviron:
+ LC_CTYPE=C.UTF-8
+ TERM=linux
+ PATH=(custom, no user)
+ LANG=en_GB.UTF-8
+ ProcVersionSignature: Ubuntu 5.19.0-38.39~22.04.1-generic 5.19.17
+ SegvAnalysis:
+ Segfault happened at: 0x7f9b3f780c1a: movzbl (%rdi,%r8,1),%r10d
+ PC (0x7f9b3f780c1a) ok
+ source "(%rdi,%r8,1)" (0x7f9a93f3701a) in non-readable VMA region: 0x7f9a90021000-0x7f9a94000000 ---p None
+ destination "%r10d" ok
+ Stack memory exhausted (SP below stack segment)
+ SegvReason: reading VMA None
+ Signal: 11
+ SourcePackage: xz-utils
+ Title: xz crashed with SIGSEGV
+ Uname: Linux 5.19.0-38-generic x86_64
+ UpgradeStatus: Upgraded to jammy on 2023-01-29 (204 days ago)
+ UserGroups: N/A
** Description changed:
xz segfaults. More details in
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2032379
From Dmesg.txt on that report
[114838.184191] xz[431483]: segfault at 7f9a93f3701a ip 00007f9b3f780c1a
sp 00007f9a957baa50 error 4 in liblzma.so.5.2.5[7f9b3f771000+1b000]
ProblemType: Crash
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
DistroRelease: Ubuntu 22.04
ExecutablePath: /usr/bin/xz
ExecutableTimestamp: 1649422298
InstallationDate: Installed on 2021-04-09 (863 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Package: xz-utils 5.2.5-2ubuntu1
ProcCmdline: xz --check=crc32 --threads=0 -c /var/tmp/mkinitramfs-MAIN_E1GbD9
ProcCwd: /
ProcEnviron:
- LC_CTYPE=C.UTF-8
- TERM=linux
- PATH=(custom, no user)
- LANG=en_GB.UTF-8
+ LC_CTYPE=C.UTF-8
+ TERM=linux
+ PATH=(custom, no user)
+ LANG=en_GB.UTF-8
ProcVersionSignature: Ubuntu 5.19.0-38.39~22.04.1-generic 5.19.17
SegvAnalysis:
- Segfault happened at: 0x7f9b3f780c1a: movzbl (%rdi,%r8,1),%r10d
- PC (0x7f9b3f780c1a) ok
- source "(%rdi,%r8,1)" (0x7f9a93f3701a) in non-readable VMA region: 0x7f9a90021000-0x7f9a94000000 ---p None
- destination "%r10d" ok
- Stack memory exhausted (SP below stack segment)
+ Segfault happened at: 0x7f9b3f780c1a: movzbl (%rdi,%r8,1),%r10d
+ PC (0x7f9b3f780c1a) ok
+ source "(%rdi,%r8,1)" (0x7f9a93f3701a) in non-readable VMA region: 0x7f9a90021000-0x7f9a94000000 ---p None
+ destination "%r10d" ok
+ Stack memory exhausted (SP below stack segment)
SegvReason: reading VMA None
Signal: 11
SourcePackage: xz-utils
Title: xz crashed with SIGSEGV
Uname: Linux 5.19.0-38-generic x86_64
UpgradeStatus: Upgraded to jammy on 2023-01-29 (204 days ago)
UserGroups: N/A
+ StacktraceTop:
+ bt_find_func (len_limit=64, pos=9137198, cur=0x7f9a943edc3d "", cur_match=4194304, depth=24, son=son at entry=0x7f9a8afbd010, cyclic_pos=748589, cyclic_size=8388609, matches=0x7f9adc0ec324, len_best=11) at ../../../../src/liblzma/lz/lz_encoder_mf.c:483
+ lzma_mf_bt4_find (mf=0x7f9a90000c70, matches=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:721
+ lzma_mf_find (mf=mf at entry=0x7f9a90000c70, count_ptr=count_ptr at entry=0x7f9adc0ecb94, matches=matches at entry=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:28
+ lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:846
+ lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:804
** Summary changed:
- xz segfault error in liblzma.so.5.2.5
+ xz crashed with SIGSEGV in lzma_lzma_optimum_normal
** Description changed:
xz segfaults. More details in
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2032379
From Dmesg.txt on that report
[114838.184191] xz[431483]: segfault at 7f9a93f3701a ip 00007f9b3f780c1a
sp 00007f9a957baa50 error 4 in liblzma.so.5.2.5[7f9b3f771000+1b000]
ProblemType: Crash
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
DistroRelease: Ubuntu 22.04
ExecutablePath: /usr/bin/xz
ExecutableTimestamp: 1649422298
InstallationDate: Installed on 2021-04-09 (863 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Package: xz-utils 5.2.5-2ubuntu1
ProcCmdline: xz --check=crc32 --threads=0 -c /var/tmp/mkinitramfs-MAIN_E1GbD9
ProcCwd: /
ProcEnviron:
LC_CTYPE=C.UTF-8
TERM=linux
PATH=(custom, no user)
LANG=en_GB.UTF-8
ProcVersionSignature: Ubuntu 5.19.0-38.39~22.04.1-generic 5.19.17
SegvAnalysis:
Segfault happened at: 0x7f9b3f780c1a: movzbl (%rdi,%r8,1),%r10d
PC (0x7f9b3f780c1a) ok
source "(%rdi,%r8,1)" (0x7f9a93f3701a) in non-readable VMA region: 0x7f9a90021000-0x7f9a94000000 ---p None
destination "%r10d" ok
Stack memory exhausted (SP below stack segment)
SegvReason: reading VMA None
Signal: 11
SourcePackage: xz-utils
- Title: xz crashed with SIGSEGV
Uname: Linux 5.19.0-38-generic x86_64
UpgradeStatus: Upgraded to jammy on 2023-01-29 (204 days ago)
UserGroups: N/A
StacktraceTop:
- bt_find_func (len_limit=64, pos=9137198, cur=0x7f9a943edc3d "", cur_match=4194304, depth=24, son=son at entry=0x7f9a8afbd010, cyclic_pos=748589, cyclic_size=8388609, matches=0x7f9adc0ec324, len_best=11) at ../../../../src/liblzma/lz/lz_encoder_mf.c:483
- lzma_mf_bt4_find (mf=0x7f9a90000c70, matches=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:721
- lzma_mf_find (mf=mf at entry=0x7f9a90000c70, count_ptr=count_ptr at entry=0x7f9adc0ecb94, matches=matches at entry=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:28
- lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:846
- lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:804
+ bt_find_func (len_limit=64, pos=9137198, cur=0x7f9a943edc3d "", cur_match=4194304, depth=24, son=son at entry=0x7f9a8afbd010, cyclic_pos=748589, cyclic_size=8388609, matches=0x7f9adc0ec324, len_best=11) at ../../../../src/liblzma/lz/lz_encoder_mf.c:483
+ lzma_mf_bt4_find (mf=0x7f9a90000c70, matches=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:721
+ lzma_mf_find (mf=mf at entry=0x7f9a90000c70, count_ptr=count_ptr at entry=0x7f9adc0ecb94, matches=matches at entry=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:28
+ lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:846
+ lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:804
--
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https://bugs.launchpad.net/bugs/2032577
Title:
xz crashed with SIGSEGV in lzma_lzma_optimum_normal
Status in xz-utils package in Ubuntu:
New
Bug description:
xz segfaults. More details in
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/2032379
From Dmesg.txt on that report
[114838.184191] xz[431483]: segfault at 7f9a93f3701a ip
00007f9b3f780c1a sp 00007f9a957baa50 error 4 in
liblzma.so.5.2.5[7f9b3f771000+1b000]
ProblemType: Crash
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
CasperMD5CheckResult: unknown
DistroRelease: Ubuntu 22.04
ExecutablePath: /usr/bin/xz
ExecutableTimestamp: 1649422298
InstallationDate: Installed on 2021-04-09 (863 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Package: xz-utils 5.2.5-2ubuntu1
ProcCmdline: xz --check=crc32 --threads=0 -c /var/tmp/mkinitramfs-MAIN_E1GbD9
ProcCwd: /
ProcEnviron:
LC_CTYPE=C.UTF-8
TERM=linux
PATH=(custom, no user)
LANG=en_GB.UTF-8
ProcVersionSignature: Ubuntu 5.19.0-38.39~22.04.1-generic 5.19.17
SegvAnalysis:
Segfault happened at: 0x7f9b3f780c1a: movzbl (%rdi,%r8,1),%r10d
PC (0x7f9b3f780c1a) ok
source "(%rdi,%r8,1)" (0x7f9a93f3701a) in non-readable VMA region: 0x7f9a90021000-0x7f9a94000000 ---p None
destination "%r10d" ok
Stack memory exhausted (SP below stack segment)
SegvReason: reading VMA None
Signal: 11
SourcePackage: xz-utils
Uname: Linux 5.19.0-38-generic x86_64
UpgradeStatus: Upgraded to jammy on 2023-01-29 (204 days ago)
UserGroups: N/A
StacktraceTop:
bt_find_func (len_limit=64, pos=9137198, cur=0x7f9a943edc3d "", cur_match=4194304, depth=24, son=son at entry=0x7f9a8afbd010, cyclic_pos=748589, cyclic_size=8388609, matches=0x7f9adc0ec324, len_best=11) at ../../../../src/liblzma/lz/lz_encoder_mf.c:483
lzma_mf_bt4_find (mf=0x7f9a90000c70, matches=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:721
lzma_mf_find (mf=mf at entry=0x7f9a90000c70, count_ptr=count_ptr at entry=0x7f9adc0ecb94, matches=matches at entry=0x7f9adc0ec304) at ../../../../src/liblzma/lz/lz_encoder_mf.c:28
lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:846
lzma_lzma_optimum_normal (position=<optimized out>, len_res=<synthetic pointer>, back_res=<synthetic pointer>, mf=<optimized out>, coder=<optimized out>) at ../../../../src/liblzma/lzma/lzma_encoder_optimum_normal.c:804
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