CVE-2024-49936

CVE-2024-49936 concerns a use-after-free in the Linux kernel net/xen-netback path (xenvif_flush_hash) during an RCU iteration. The bug happens when kfree_rcu is invoked inside the RCU read-critcal section, causing an access to head->next after the entry is freed, leading to UAF. The mitigation...

CVE-2024-49925 fbdev: efifb: Register sysfs groups through driver core

In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: Register sysfs groups through driver core The driver core can register and cleanup sysfs groups already. Make use of that functionality to simplify the error handling and cleanup. Also avoid a UAF race during...

CVE-2024-49924 fbdev: pxafb: Fix possible use after free in pxafb_task()

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

CVE-2024-49924 fbdev: pxafb: Fix possible use after free in pxafb_task()

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

CVE-2024-49925 fbdev: efifb: Register sysfs groups through driver core

In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: Register sysfs groups through driver core The driver core can register and cleanup sysfs groups already. Make use of that functionality to simplify the error handling and cleanup. Also avoid a UAF race during...

CVE-2024-49924 fbdev: pxafb: Fix possible use after free in pxafb_task()

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

CVE-2024-49925 fbdev: efifb: Register sysfs groups through driver core

In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: Register sysfs groups through driver core The driver core can register and cleanup sysfs groups already. Make use of that functionality to simplify the error handling and cleanup. Also avoid a UAF race during...

CVE-2024-49903 jfs: Fix uaf in dbFreeBits

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uaf in dbFreeBits syzbot reported ================================================================== BUG: KASAN: slab-use-after-free in mutexlockcommon kernel/locking/mutex.c:587 inline BUG: KASAN: slab-use-after-free in...

CVE-2024-49903 jfs: Fix uaf in dbFreeBits

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uaf in dbFreeBits syzbot reported ================================================================== BUG: KASAN: slab-use-after-free in mutexlockcommon kernel/locking/mutex.c:587 inline BUG: KASAN: slab-use-after-free in...

CVE-2024-49903 jfs: Fix uaf in dbFreeBits

In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uaf in dbFreeBits syzbot reported ================================================================== BUG: KASAN: slab-use-after-free in mutexlockcommon kernel/locking/mutex.c:587 inline BUG: KASAN: slab-use-after-free in...

CVE-2024-49903

CVE-2024-49903 is a Linux kernel vulnerability involving a slab-use-after-free in the JFS mapping code (dbFreeBits/dbFreeDmap) caused by a race between two paths (dbUnmount and jfs_ioc_trim) that access bmap. The race can lead to uaf when trimming or unmounting JFS and subsequently freeing object...

CVE-2024-49883 ext4: aovid use-after-free in ext4_ext_insert_extent()

In the Linux kernel, the following vulnerability has been resolved: ext4: aovid use-after-free in ext4extinsertextent As Ojaswin mentioned in Link, in ext4extinsertextent, if the path is reallocated in ext4extcreatenewleaf, we'll use the stale path and cause UAF. Below is a sample trace with dumm...

CVE-2024-49883 ext4: aovid use-after-free in ext4_ext_insert_extent()

In the Linux kernel, the following vulnerability has been resolved: ext4: aovid use-after-free in ext4extinsertextent As Ojaswin mentioned in Link, in ext4extinsertextent, if the path is reallocated in ext4extcreatenewleaf, we'll use the stale path and cause UAF. Below is a sample trace with dumm...

CVE-2024-49876 drm/xe: fix UAF around queue destruction

In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix UAF around queue destruction We currently do stuff like queuing the final destruction step on a random system wq, which will outlive the driver instance. With bad timing we can teardown the driver with one or more wor...

CVE-2024-49876

CVE-2024-49876 affects the Linux kernel DRM-Xe path. The issue is a use-after-free (UAF) around queue destruction where final destruction steps could run on a workqueue that outlives the driver instance, risking references to freed objects. The fix adds a fini step to ensure user queues are torn ...

CVE-2024-49876 drm/xe: fix UAF around queue destruction

In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix UAF around queue destruction We currently do stuff like queuing the final destruction step on a random system wq, which will outlive the driver instance. With bad timing we can teardown the driver with one or more wor...

CVE-2024-49876 drm/xe: fix UAF around queue destruction

In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix UAF around queue destruction We currently do stuff like queuing the final destruction step on a random system wq, which will outlive the driver instance. With bad timing we can teardown the driver with one or more wor...

CVE-2024-49874

CVE-2024-49874 affects the Linux kernel’s i3c master subsystem (svc_i3c_master). The issue is a use-after-free race between the worker threads bound to master->hj_work and master->ibi_work during cleanup. If the module is removed, master->base can be freed while a worker may still access...

CVE-2024-49874 i3c: master: svc: Fix use after free vulnerability in svc_i3c_master Driver Due to Race Condition

In the Linux kernel, the following vulnerability has been resolved: i3c: master: svc: Fix use after free vulnerability in svci3cmaster Driver Due to Race Condition In the svci3cmasterprobe function, &master-hjwork is bound with svci3cmasterhjwork, &master-ibiwork is bound with svci3cmasteribiwork...

CVE-2024-49865 drm/xe/vm: move xa_alloc to prevent UAF

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: move xaalloc to prevent UAF Evil user can guess the next id of the vm before the ioctl completes and then call vm destroy ioctl to trigger UAF since create ioctl is still referencing the same vm. Move the xaalloc all t...