After a closer look, this seems to be generated from legacy code in the
kernel. Please ignore previous comment. An upstream fix is on its way to
the mainline kernel. After it lands then we can pick it and apply it to
fix the problem in the Ubuntu kernel.
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Agathe Porte (gagath)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: New => Triaged
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https://bugs.launchpad.net/bugs/2087853
Title:
Kernel messages about UFS
Status in linux package in Ubuntu:
Triaged
Bug description:
Hello!
I have mounted UFS partition (ufstype=ufs2).
Ubuntu allows only read only mounts for UFS by default, so it is mounted with
ro option.
I see those messages in the log:
kernel: ------------[ cut here ]------------
kernel: UBSAN: shift-out-of-bounds in
/build/linux-21sZ5Q/linux-6.8.0/fs/ufs/super.c:1247:19
kernel: shift exponent 36 is too large for 32-bit type 'int'
kernel: CPU: 3 PID: 2212 Comm: mount Not tainted 6.8.0-48-generic #48-Ubuntu
kernel: Hardware name: SOYO SY-YL B550M/SY-YL B550M, BIOS 5.17 05/19/2023
kernel: Call Trace:
kernel: <TASK>
kernel: dump_stack_lvl+0x76/0xa0
kernel: dump_stack+0x10/0x20
kernel: __ubsan_handle_shift_out_of_bounds+0x199/0x370
kernel: ufs_fill_super.cold+0x16/0x1b7 [ufs]
kernel: ? sb_set_blocksize+0x1d/0x70
kernel: ? __pfx_ufs_fill_super+0x10/0x10 [ufs]
kernel: mount_bdev+0xf6/0x140
kernel: ufs_mount+0x15/0x30 [ufs]
kernel: legacy_get_tree+0x2b/0x60
kernel: vfs_get_tree+0x2a/0x100
kernel: do_new_mount+0x1a0/0x340
kernel: path_mount+0x1e0/0x830
kernel: ? putname+0x5b/0x80
kernel: __x64_sys_mount+0x127/0x160
kernel: x64_sys_call+0x1df5/0x25c0
kernel: do_syscall_64+0x7f/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? mntput+0x24/0x50
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? path_put+0x1e/0x30
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? do_faccessat+0x1c2/0x2f0
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? syscall_exit_to_user_mode+0x86/0x260
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? do_syscall_64+0x8c/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? syscall_exit_to_user_mode+0x86/0x260
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? do_syscall_64+0x8c/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? __do_sys_newfstatat+0x53/0x90
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? syscall_exit_to_user_mode+0x86/0x260
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? do_syscall_64+0x8c/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? irqentry_exit+0x43/0x50
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? exc_page_fault+0x94/0x1b0
kernel: entry_SYSCALL_64_after_hwframe+0x78/0x80
kernel: RIP: 0033:0x7417b2d2af0e
kernel: Code: 48 8b 0d 0d 7f 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff
ff 73 01 c3 48 8b 0d da 7e 0d 00 f7 d8 64 89 01 48
kernel: RSP: 002b:00007fff1145f4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
kernel: RAX: ffffffffffffffda RBX: 000059b6f92e7b00 RCX: 00007417b2d2af0e
kernel: RDX: 000059b6f92e7f10 RSI: 000059b6f92e81b0 RDI: 000059b6f92e83f0
kernel: RBP: 00007fff1145f540 R08: 000059b6f92e8150 R09: 00007fff1145f5b0
kernel: R10: 0000000000000401 R11: 0000000000000246 R12: 000059b6f92e83f0
kernel: R13: 000059b6f92e81b0 R14: 000059b6f92e7f10 R15: 000059b6f92e7c60
kernel: </TASK>
kernel: ---[ end trace ]---
kernel: ------------[ cut here ]------------
kernel: UBSAN: shift-out-of-bounds in
/build/linux-21sZ5Q/linux-6.8.0/fs/ufs/super.c:1247:19
kernel: shift exponent 36 is too large for 32-bit type 'int'
kernel: CPU: 6 PID: 2113 Comm: mount Not tainted 6.8.0-48-generic #48-Ubuntu
kernel: Hardware name: SOYO SY-YL B550M/SY-YL B550M, BIOS 5.17 05/19/2023
kernel: Call Trace:
kernel: <TASK>
kernel: dump_stack_lvl+0x76/0xa0
kernel: dump_stack+0x10/0x20
kernel: __ubsan_handle_shift_out_of_bounds+0x199/0x370
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ufs_fill_super.cold+0x16/0x1b7 [ufs]
kernel: ? sb_set_blocksize+0x1d/0x70
kernel: ? __pfx_ufs_fill_super+0x10/0x10 [ufs]
kernel: mount_bdev+0xf6/0x140
kernel: ufs_mount+0x15/0x30 [ufs]
kernel: legacy_get_tree+0x2b/0x60
kernel: vfs_get_tree+0x2a/0x100
kernel: do_new_mount+0x1a0/0x340
kernel: path_mount+0x1e0/0x830
kernel: ? putname+0x5b/0x80
kernel: __x64_sys_mount+0x127/0x160
kernel: x64_sys_call+0x1df5/0x25c0
kernel: do_syscall_64+0x7f/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? syscall_exit_to_user_mode+0x86/0x260
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? do_syscall_64+0x8c/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? do_syscall_64+0x8c/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? do_syscall_64+0x8c/0x180
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? irqentry_exit+0x43/0x50
kernel: ? srso_return_thunk+0x5/0x5f
kernel: ? exc_page_fault+0x94/0x1b0
kernel: entry_SYSCALL_64_after_hwframe+0x78/0x80
kernel: RIP: 0033:0x7b616d52af0e
kernel: Code: 48 8b 0d 0d 7f 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff
ff 73 01 c3 48 8b 0d da 7e 0d 00 f7 d8 64 89 01 48
kernel: RSP: 002b:00007ffc10c387b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
kernel: RAX: ffffffffffffffda RBX: 00005d6eb3bc9b00 RCX: 00007b616d52af0e
kernel: RDX: 00005d6eb3bc9f10 RSI: 00005d6eb3bca1b0 RDI: 00005d6eb3bca3f0
kernel: RBP: 00007ffc10c38820 R08: 00005d6eb3bca150 R09: 00007ffc10c38890
kernel: R10: 0000000000000401 R11: 0000000000000246 R12: 00005d6eb3bca3f0
kernel: R13: 00005d6eb3bca1b0 R14: 00005d6eb3bc9f10 R15: 00005d6eb3bc9c60
kernel: </TASK>
kernel: ---[ end trace ]---
cat /proc/version_signature
Ubuntu 6.8.0-48.48-generic 6.8.12
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