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| Filename | Latest commit message | Latest commit date |
|---|---|---|
c02189e12c
A left shift must shift less than the bit width of the left argument. Avoid triggering undefined behavior if ha->mbx_count == 32. This patch avoids that UBSAN reports the following complaint: UBSAN: Undefined behaviour in drivers/scsi/qla2xxx/qla_isr.c:275:14 shift exponent 32 is too large for 32-bit type 'int' Call Trace: dump_stack+0x4e/0x6c ubsan_epilogue+0xd/0x3b __ubsan_handle_shift_out_of_bounds+0x112/0x14c qla2x00_mbx_completion+0x1c5/0x25d [qla2xxx] qla2300_intr_handler+0x1ea/0x3bb [qla2xxx] qla2x00_mailbox_command+0x77b/0x139a [qla2xxx] qla2x00_mbx_reg_test+0x83/0x114 [qla2xxx] qla2x00_chip_diag+0x354/0x45f [qla2xxx] qla2x00_initialize_adapter+0x2c2/0xa4e [qla2xxx] qla2x00_probe_one+0x1681/0x392e [qla2xxx] pci_device_probe+0x10b/0x1f1 driver_probe_device+0x21f/0x3a4 __driver_attach+0xa9/0xe1 bus_for_each_dev+0x6e/0xb5 driver_attach+0x22/0x3c bus_add_driver+0x1d1/0x2ae driver_register+0x78/0x130 __pci_register_driver+0x75/0xa8 qla2x00_module_init+0x21b/0x267 [qla2xxx] do_one_initcall+0x5a/0x1e2 do_init_module+0x9d/0x285 load_module+0x20db/0x38e3 SYSC_finit_module+0xa8/0xbc SyS_finit_module+0x9/0xb do_syscall_64+0x77/0x271 entry_SYSCALL64_slow_path+0x25/0x25 Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Himanshu Madhani <himanshu.madhani@cavium.com> Reviewed-by: Laurence Oberman <loberman@redhat.com> Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.