CVSS: 6.6EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47230 – KVM: x86: Immediately reset the MMU context when the SMM flag is cleared
https://notcve.org/view.php?id=CVE-2021-47230
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Immediately reset the MMU context when the SMM flag is cleared Immediately reset the MMU context when the vCPU's SMM flag is cleared so that the SMM flag in the MMU role is always synchronized with the vCPU's flag. If RSM fails (which isn't correctly emulated), KVM will bail without calling post_leave_smm() and leave the MMU in a bad state. The bad MMU role can lead to a NULL pointer dereference when grabbing a shadow page's rmap ... • https://git.kernel.org/stable/c/9ec19493fb86d6d5fbf9286b94ff21e56ef66376 • CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47229 – PCI: aardvark: Fix kernel panic during PIO transfer
https://notcve.org/view.php?id=CVE-2021-47229
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: PCI: aardvark: Fix kernel panic during PIO transfer Trying to start a new PIO transfer by writing value 0 in PIO_START register when previous transfer has not yet completed (which is indicated by value 1 in PIO_START) causes an External Abort on CPU, which results in kernel panic: SError Interrupt on CPU0, code 0xbf000002 -- SError Kernel panic - not syncing: Asynchronous SError Interrupt To prevent kernel panic, it is required to reject a ... • https://git.kernel.org/stable/c/400e6b1860c8be61388d0b77814c53260f96e17a •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2021-47226 – x86/fpu: Invalidate FPU state after a failed XRSTOR from a user buffer
https://notcve.org/view.php?id=CVE-2021-47226
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Invalidate FPU state after a failed XRSTOR from a user buffer Both Intel and AMD consider it to be architecturally valid for XRSTOR to fail with #PF but nonetheless change the register state. The actual conditions under which this might occur are unclear [1], but it seems plausible that this might be triggered if one sibling thread unmaps a page and invalidates the shared TLB while another sibling thread is executing XRSTOR on the ... • https://git.kernel.org/stable/c/1d731e731c4cd7cbd3b1aa295f0932e7610da82f •
CVSS: 10.0EPSS: 0%CPEs: 4EXPL: 0CVE-2021-47224 – net: ll_temac: Make sure to free skb when it is completely used
https://notcve.org/view.php?id=CVE-2021-47224
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: ll_temac: Make sure to free skb when it is completely used With the skb pointer piggy-backed on the TX BD, we have a simple and efficient way to free the skb buffer when the frame has been transmitted. But in order to avoid freeing the skb while there are still fragments from the skb in use, we need to piggy-back on the TX BD of the skb, not the first. Without this, we are doing use-after-free on the DMA side, when the first BD of a mu... • https://git.kernel.org/stable/c/6d120ab4dc39a543c6b63361e1d0541c382900a3 •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47223 – net: bridge: fix vlan tunnel dst null pointer dereference
https://notcve.org/view.php?id=CVE-2021-47223
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst null pointer dereference This patch fixes a tunnel_dst null pointer dereference due to lockless access in the tunnel egress path. When deleting a vlan tunnel the tunnel_dst pointer is set to NULL without waiting a grace period (i.e. while it's still usable) and packets egressing are dereferencing it without checking. Use READ/WRITE_ONCE to annotate the lockless use of tunnel_id, use RCU for accessing tunnel_... • https://git.kernel.org/stable/c/11538d039ac6efcf4f1a6c536e1b87cd3668a9fd •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2021-47222 – net: bridge: fix vlan tunnel dst refcnt when egressing
https://notcve.org/view.php?id=CVE-2021-47222
21 May 2024 — In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dst_clone() and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing number of problems. It also triggers the WARN_ON() in dst_hold()[1] when a refcnt couldn't be taken. Fix it by using dst_hold_safe() and checking if a reference was actually taken before setting the dst. [1] dmesg WARN_ON log and follow... • https://git.kernel.org/stable/c/11538d039ac6efcf4f1a6c536e1b87cd3668a9fd •
CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2024-36009 – ax25: Fix netdev refcount issue
https://notcve.org/view.php?id=CVE-2024-36009
20 May 2024 — In the Linux kernel, the following vulnerability has been resolved: ax25: Fix netdev refcount issue The dev_tracker is added to ax25_cb in ax25_bind(). When the ax25 device is detaching, the dev_tracker of ax25_cb should be deallocated in ax25_kill_by_device() instead of the dev_tracker of ax25_dev. The log reported by ref_tracker is shown below: [ 80.884935] ref_tracker: reference already released. [ 80.885150] ref_tracker: allocated in: [ 80.885349] ax25_dev_device_up+0x105/0x540 [ 80.885730] ax25_device_... • https://git.kernel.org/stable/c/feef318c855a361a1eccd880f33e88c460eb63b4 •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-36007 – mlxsw: spectrum_acl_tcam: Fix warning during rehash
https://notcve.org/view.php?id=CVE-2024-36007
20 May 2024 — In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix warning during rehash As previously explained, the rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks (all the filters with the same priority) in the region and in each chunk iterating over all the filters. When the work runs out of credits it stores the current chunk and entry as markers in the per-work context so that it would know where to resume the mi... • https://git.kernel.org/stable/c/6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2024-36006 – mlxsw: spectrum_acl_tcam: Fix incorrect list API usage
https://notcve.org/view.php?id=CVE-2024-36006
20 May 2024 — In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_acl_tcam: Fix incorrect list API usage Both the function that migrates all the chunks within a region and the function that migrates all the entries within a chunk call list_first_entry() on the respective lists without checking that the lists are not empty. This is incorrect usage of the API, which leads to the following warning [1]. Fix by returning if the lists are empty as there is nothing to migrate in this case. [1] WA... • https://git.kernel.org/stable/c/6f9579d4e3021b17b0a4cde6b04a6c94c9575cdf •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2024-36004 – i40e: Do not use WQ_MEM_RECLAIM flag for workqueue
https://notcve.org/view.php?id=CVE-2024-36004
20 May 2024 — In the Linux kernel, the following vulnerability has been resolved: i40e: Do not use WQ_MEM_RECLAIM flag for workqueue Issue reported by customer during SRIOV testing, call trace: When both i40e and the i40iw driver are loaded, a warning in check_flush_dependency is being triggered. This seems to be because of the i40e driver workqueue is allocated with the WQ_MEM_RECLAIM flag, and the i40iw one is not. Similar error was encountered on ice too and it was fixed by removing the flag. Do the same for i40e too.... • https://git.kernel.org/stable/c/4d5957cbdecdbb77d24c1465caadd801c07afa4a •