CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-56624 – iommufd: Fix out_fput in iommufd_fault_alloc()
https://notcve.org/view.php?id=CVE-2024-56624
In the Linux kernel, the following vulnerability has been resolved: iommufd: Fix out_fput in iommufd_fault_alloc() As fput() calls the file->f_op->release op, where fault obj and ictx are getting released, there is no need to release these two after fput() one more time, which would result in imbalanced refcounts: refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 48 PID: 2369 at lib/refcount.c:31 refcount_warn_saturate+0x60/0x230 Call trace: refcount_warn_saturate+0x60/0x230 (P) refcount_warn_saturate+0x60/0x230 (L) iommufd_fault_fops_release+0x9c/0xe0 [iommufd] ... VFS: Close: file count is 0 (f_op=iommufd_fops [iommufd]) WARNING: CPU: 48 PID: 2369 at fs/open.c:1507 filp_flush+0x3c/0xf0 Call trace: filp_flush+0x3c/0xf0 (P) filp_flush+0x3c/0xf0 (L) __arm64_sys_close+0x34/0x98 ... imbalanced put on file reference count WARNING: CPU: 48 PID: 2369 at fs/file.c:74 __file_ref_put+0x100/0x138 Call trace: __file_ref_put+0x100/0x138 (P) __file_ref_put+0x100/0x138 (L) __fput_sync+0x4c/0xd0 Drop those two lines to fix the warnings above. • https://git.kernel.org/stable/c/07838f7fd529c8a6de44b601d4b7057e6c8d36ed https://git.kernel.org/stable/c/2b3f30c8edbf9a122ce01f13f0f41fbca5f1d41d https://git.kernel.org/stable/c/af7f4780514f850322b2959032ecaa96e4b26472 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-56623 – scsi: qla2xxx: Fix use after free on unload
https://notcve.org/view.php?id=CVE-2024-56623
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix use after free on unload System crash is observed with stack trace warning of use after free. There are 2 signals to tell dpc_thread to terminate (UNLOADING flag and kthread_stop). On setting the UNLOADING flag when dpc_thread happens to run at the time and sees the flag, this causes dpc_thread to exit and clean up itself. When kthread_stop is called for final cleanup, this causes use after free. Remove UNLOADING signal to terminate dpc_thread. Use the kthread_stop as the main signal to exit dpc_thread. [596663.812935] kernel BUG at mm/slub.c:294! [596663.812950] invalid opcode: 0000 [#1] SMP PTI [596663.812957] CPU: 13 PID: 1475935 Comm: rmmod Kdump: loaded Tainted: G IOE --------- - - 4.18.0-240.el8.x86_64 #1 [596663.812960] Hardware name: HP ProLiant DL380p Gen8, BIOS P70 08/20/2012 [596663.812974] RIP: 0010:__slab_free+0x17d/0x360 ... [596663.813008] Call Trace: [596663.813022] ? • https://git.kernel.org/stable/c/12f04fc8580eafb0510f805749553eb6213f323e https://git.kernel.org/stable/c/ca36d9d53745d5ec8946ef85006d4da605ea7c54 https://git.kernel.org/stable/c/b3e6f25176f248762a24d25ab8cf8c5e90874f80 https://git.kernel.org/stable/c/15369e774f27ec790f207de87c0b541e3f90b22d https://git.kernel.org/stable/c/6abf16d3c915b2feb68c1c8b25fcb71b13f98478 https://git.kernel.org/stable/c/07c903db0a2ff84b68efa1a74a4de353ea591eb0 •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2024-56622 – scsi: ufs: core: sysfs: Prevent div by zero
https://notcve.org/view.php?id=CVE-2024-56622
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: sysfs: Prevent div by zero Prevent a division by 0 when monitoring is not enabled. • https://git.kernel.org/stable/c/1d8613a23f3c3b8f0101e453ff150e05a0d1cd4f https://git.kernel.org/stable/c/87bf3ea841a5d77beae6bb85af36b2b3848407ee https://git.kernel.org/stable/c/7b21233e5f72d10f08310689f993c1dbdfde9f2c https://git.kernel.org/stable/c/0069928727c2e95ca26c738fbe6e4b241aeaaf08 https://git.kernel.org/stable/c/9c191055c7abea4912fdb83cb9b261732b25a0c8 https://git.kernel.org/stable/c/eb48e9fc0028bed94a40a9352d065909f19e333c •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-56621 – scsi: ufs: core: Cancel RTC work during ufshcd_remove()
https://notcve.org/view.php?id=CVE-2024-56621
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Cancel RTC work during ufshcd_remove() Currently, RTC work is only cancelled during __ufshcd_wl_suspend(). When ufshcd is removed in ufshcd_remove(), RTC work is not cancelled. Due to this, any further trigger of the RTC work after ufshcd_remove() would result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 00000000000002a4 Workqueue: events ufshcd_rtc_work Call trace: _raw_spin_lock_irqsave+0x34/0x8c pm_runtime_get_if_active+0x24/0xb4 ufshcd_rtc_work+0x124/0x19c process_scheduled_works+0x18c/0x2d8 worker_thread+0x144/0x280 kthread+0x11c/0x128 ret_from_fork+0x10/0x20 Since RTC work accesses the ufshcd internal structures, it should be cancelled when ufshcd is removed. So do that in ufshcd_remove(), as per the order in ufshcd_init(). • https://git.kernel.org/stable/c/6bf999e0eb41850d5c857102535d5c53b2ede224 https://git.kernel.org/stable/c/2e7a3bb0331efb292e0fb022c36bc592137f0520 https://git.kernel.org/stable/c/1695c4361d35b7bdadd7b34f99c9c07741e181e5 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2024-56620 – scsi: ufs: qcom: Only free platform MSIs when ESI is enabled
https://notcve.org/view.php?id=CVE-2024-56620
In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: qcom: Only free platform MSIs when ESI is enabled Otherwise, it will result in a NULL pointer dereference as below: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Call trace: mutex_lock+0xc/0x54 platform_device_msi_free_irqs_all+0x14/0x20 ufs_qcom_remove+0x34/0x48 [ufs_qcom] platform_remove+0x28/0x44 device_remove+0x4c/0x80 device_release_driver_internal+0xd8/0x178 driver_detach+0x50/0x9c bus_remove_driver+0x6c/0xbc driver_unregister+0x30/0x60 platform_driver_unregister+0x14/0x20 ufs_qcom_pltform_exit+0x18/0xb94 [ufs_qcom] __arm64_sys_delete_module+0x180/0x260 invoke_syscall+0x44/0x100 el0_svc_common.constprop.0+0xc0/0xe0 do_el0_svc+0x1c/0x28 el0_svc+0x34/0xdc el0t_64_sync_handler+0xc0/0xc4 el0t_64_sync+0x190/0x194 • https://git.kernel.org/stable/c/519b6274a7775f5fe00a086f189efb8f063467d1 https://git.kernel.org/stable/c/f99cb5f6344ef93777fd3add7979ebf291a852df https://git.kernel.org/stable/c/64506b3d23a337e98a74b18dcb10c8619365f2bd •