Bug#1085629: marked as done (libssh-4 (0.11.1) lets qemu fail to access disk images via ssh)

Wed, 01 Jan 2025 14:33:50 -0800 

Your message dated Wed, 01 Jan 2025 23:30:25 +0100
with message-id <6592e363a460d577e772fc8b1e044dc2fffb4e38.ca...@debian.org>
and subject line Re: Bug#1085629: libssh-4: version 0.11.1 ABI-incompatible to 
0.10.6, let qemu fail to access disk images via ssh
has caused the Debian Bug report #1085629,
regarding libssh-4 (0.11.1) lets qemu fail to access disk images via ssh
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact ow...@bugs.debian.org
immediately.)


-- 
1085629: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1085629
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message --- 
Package: libssh-4
Version: 0.11.1-1
Severity: important
Tags: upstream
Control: affects -1 = qemu-block-extra qemu guestmount guestfish

Dear Maintainer,

With libssh-4 (0.11.1) qemu fails to access remote disk images via
ssh. After downgrading to libssh-4 (0.10.6-3) the VM starts again as
expected.


To reproduce the issue on a amd64 machine
* make sure you have sshd running
* make sure sure can ssh to localhost
* make sure you have ssh-agent running and preloaded with your private key
* apt install qemu-system-x86
* download and unpack the amd64-pc disk image from 
https://people.debian.org/~gio/dqib/
* cd to the dqib_amd64-pc directory resulting from unpacking
* run

    qemu-system-x86_64 -machine 'pc' -enable-kvm -m 1G \
    -drive 
file=ssh://<user>@localhost/home/<user>/.../dqib_amd64-pc/image.qcow2 \
    -kernel kernel -initrd initrd -nographic -append "root=LABEL=rootfs 
console=ttyS0"
 
With libssh-4 (0.11.1-1) qemu-system-x86_64 exits with error message

    Could not read image for determining its format: Input/output error

With libssh-4 (0.10-6-3) the VM starts up.


For guestfish and guestmount downgrading libssh-4 does not help.

Running questmount with libssh-4 (0.11.1-1)

    guestmount -i -a 
ssh://<user>@localhost/home/<user>/.../dqib_amd64-pc/image.qcow2 <mount point>

returns (amongst others)

    libguestfs: error: appliance closed the connection unexpectedly.

Running questmount with libssh-4 (0.10-6-3) returns

    guestmount: /lib/x86_64-linux-gnu/libssh.so.4: version `LIBSSH_4_10_0' not 
found (required by /lib/x86_64-linux-gnu/libvirt.so.0)


The attached report, generated using abi-compliance-checker, reveals
problematic changes to data types
    ssh_callbacks_struct, ssh_channel_callbacks_struct in callbacks.h
    sftp_session_struct in sftp.h

Hope this helps to fix the issue.

Sven

-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 6.11.2-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8),
LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libssh-4 depends on:
ii  libc6             2.40-3
ii  libgssapi-krb5-2  1.21.3-3
ii  libssl3t64        3.3.2-1
ii  zlib1g            1:1.3.dfsg+really1.3.1-1

libssh-4 recommends no packages.

libssh-4 suggests no packages.

-- no debconf information

-- 
GPG Fingerprint
3DF5 E8AA 43FC 9FDF D086 F195 ADF5 0EDA F8AD D585
Title: libssh: 1.10.6 to 1.11.0 compatibility report

API compatibility report for the libssh library between 1.10.6 and 1.11.0 versions on x86_64


Binary
Compatibility Source
Compatibility

Test Info

Library Namelibssh
Version #11.10.6
Version #21.11.0
Archx86_64
GCC Version14
SubjectBinary Compatibility

Test Results

Total Header Files8
Total Libraries1
Total Symbols / Types424 / 156
Compatibility 100%

Problem Summary

SeverityCount
Added Symbols-18
Removed SymbolsHigh0
Problems with
Data Types		High0
Medium0
Low7
Problems with
Symbols		High0
Medium0
Low0
Problems with
Constants		Low0
Other Changes
in Data Types		-8

Added Symbols  18 

libssh.h, libssh.so.4.10.1
ssh_channel_get_exit_state ( ssh_channel channel, uint32_t* pexit_code, char** pexit_signal, int* pcore_dumped ) @@ LIBSSH_4_10_0
ssh_channel_request_pty_size_modes ( ssh_channel channel, char const* term, int cols, int rows, unsigned char const* modes, size_t modes_len ) @@ LIBSSH_4_10_0
ssh_pki_export_privkey_base64_format ( ssh_key const privkey, char const* passphrase, ssh_auth_callback auth_fn, void* auth_data, char** b64_key, enum ssh_file_format_e format ) @@ LIBSSH_4_10_0
ssh_pki_export_privkey_file_format ( ssh_key const privkey, char const* passphrase, ssh_auth_callback auth_fn, void* auth_data, char const* filename, enum ssh_file_format_e format ) @@ LIBSSH_4_10_0
ssh_request_no_more_sessions ( ssh_session session ) @@ LIBSSH_4_10_0

sftp.h, libssh.so.4.10.1
sftp_aio_begin_read ( sftp_file file, size_t len, sftp_aio* aio ) @@ LIBSSH_4_10_0
sftp_aio_begin_write ( sftp_file file, void const* buf, size_t len, sftp_aio* aio ) @@ LIBSSH_4_10_0
sftp_aio_free ( sftp_aio aio ) @@ LIBSSH_4_10_0
sftp_aio_wait_read ( sftp_aio* aio, void* buf, size_t buf_size ) @@ LIBSSH_4_10_0
sftp_aio_wait_write ( sftp_aio* aio ) @@ LIBSSH_4_10_0
sftp_expand_path ( sftp_session sftp, char const* path ) @@ LIBSSH_4_10_0
sftp_hardlink ( sftp_session sftp, char const* oldpath, char const* newpath ) @@ LIBSSH_4_10_0
sftp_home_directory ( sftp_session sftp, char const* username ) @@ LIBSSH_4_10_0
sftp_limits ( sftp_session sftp ) @@ LIBSSH_4_10_0
sftp_limits_free ( sftp_limits_t limits ) @@ LIBSSH_4_10_0
sftp_lsetstat ( sftp_session sftp, char const* file, sftp_attributes attr ) @@ LIBSSH_4_10_0

sftpserver.h, libssh.so.4.10.1
sftp_channel_default_data_callback ( ssh_session session, ssh_channel channel, void* data, uint32_t len, int is_stderr, void* userdata ) @@ LIBSSH_4_10_0
sftp_channel_default_subsystem_request ( ssh_session session, ssh_channel channel, char const* subsystem, void* userdata ) @@ LIBSSH_4_10_0

to the top

Problems with Data Types, Low Severity  7 

callbacks.h
[+] struct ssh_callbacks_struct  2 
[+] struct ssh_channel_callbacks_struct  3 

sftp.h
[+] struct sftp_session_struct  2 

to the top

Other Changes in Data Types  8 

libssh.h
[+] enum ssh_keycmp_e  1 
[+] enum ssh_options_e  6 

server.h
[+] enum ssh_bind_options_e  1 

to the top

Header Files  8 

callbacks.h
legacy.h
libssh.h
libssh_version.h
libsshpp.hpp
server.h
sftp.h
ssh2.h

to the top

Libraries  1 

libssh.so.4.9.6

to the top



Test Info

Library Namelibssh
Version #11.10.6
Version #21.11.0
Archx86_64
SubjectSource Compatibility

Test Results

Total Header Files8
Total Libraries1
Total Symbols / Types502 / 163
Compatibility 100%

Problem Summary

SeverityCount
Added Symbols-18
Removed SymbolsHigh0
Problems with
Data Types		High0
Medium0
Low4
Problems with
Symbols		High0
Medium0
Low0
Problems with
Constants		Low2
Other Changes
in Data Types		-8

Added Symbols  18 

libssh.h
ssh_channel_get_exit_state ( ssh_channel channel, uint32_t* pexit_code, char** pexit_signal, int* pcore_dumped )
ssh_channel_request_pty_size_modes ( ssh_channel channel, char const* term, int cols, int rows, unsigned char const* modes, size_t modes_len )
ssh_pki_export_privkey_base64_format ( ssh_key const privkey, char const* passphrase, ssh_auth_callback auth_fn, void* auth_data, char** b64_key, enum ssh_file_format_e format )
ssh_pki_export_privkey_file_format ( ssh_key const privkey, char const* passphrase, ssh_auth_callback auth_fn, void* auth_data, char const* filename, enum ssh_file_format_e format )
ssh_request_no_more_sessions ( ssh_session session )

sftp.h
sftp_aio_begin_read ( sftp_file file, size_t len, sftp_aio* aio )
sftp_aio_begin_write ( sftp_file file, void const* buf, size_t len, sftp_aio* aio )
sftp_aio_free ( sftp_aio aio )
sftp_aio_wait_read ( sftp_aio* aio, void* buf, size_t buf_size )
sftp_aio_wait_write ( sftp_aio* aio )
sftp_expand_path ( sftp_session sftp, char const* path )
sftp_hardlink ( sftp_session sftp, char const* oldpath, char const* newpath )
sftp_home_directory ( sftp_session sftp, char const* username )
sftp_limits ( sftp_session sftp )
sftp_limits_free ( sftp_limits_t limits )
sftp_lsetstat ( sftp_session sftp, char const* file, sftp_attributes attr )

sftpserver.h
sftp_channel_default_data_callback ( ssh_session session, ssh_channel channel, void* data, uint32_t len, int is_stderr, void* userdata )
sftp_channel_default_subsystem_request ( ssh_session session, ssh_channel channel, char const* subsystem, void* userdata )

to the top

Problems with Data Types, Low Severity  4 

callbacks.h
[+] struct ssh_callbacks_struct  1 
[+] struct ssh_channel_callbacks_struct  2 

sftp.h
[+] struct sftp_session_struct  1 

to the top

Problems with Constants, Low Severity  2 

libssh_version.h
[+] LIBSSH_VERSION_MICRO
[+] LIBSSH_VERSION_MINOR

to the top

Other Changes in Data Types  8 

libssh.h
[+] enum ssh_keycmp_e  1 
[+] enum ssh_options_e  6 

server.h
[+] enum ssh_bind_options_e  1 

to the top

Header Files  8 

callbacks.h
legacy.h
libssh.h
libssh_version.h
libsshpp.hpp
server.h
sftp.h
ssh2.h

to the top

Libraries  1 

libssh.so.4.9.6

to the top



Generated by ABI Compliance Checker 2.3  

Attachment: signature.asc
Description: This is a digitally signed message part


--- End Message ---
--- Begin Message --- 
Version: 1:9.2.0+ds-1
Done: Michael Tokarev <m...@tls.msk.ru>


On Mon, 2024-12-30 at 13:02 +0100, Sven Geuer wrote:
> 
> The fix materialised in Debian.

Closing the bug.

-- 
GPG Fingerprint
3DF5 E8AA 43FC 9FDF D086 F195 ADF5 0EDA F8AD D585

Attachment: signature.asc
Description: This is a digitally signed message part


--- End Message ---

Reply via email to