This patch fixes this by using the open_how struct that we store from the audit_context with audit_openat2_how(). unbiased of this patch, Richard Guy Briggs posted an analogous patch into the audit mailing listing roughly forty minutes just after this patch was posted.
matrix-rust-sdk is surely an implementation of a Matrix consumer-server library in Rust. The `UserIdentity::is_verified()` method inside the matrix-sdk-copyright crate just before Edition 0.7.2 would 6pm smartwool not consider the verification status of the consumer's own identity while carrying out the Look at and may Subsequently return a worth contrary to what's implied by its title and documentation. Should the method is employed to make a decision irrespective of whether to perform delicate operations to a person identity, a destructive homeserver could manipulate the outcome to be able to make the identification show up trusted.
just before dedicate 45bf39f8df7f ("USB: Main: Don't maintain unit lock even though looking at the "descriptors" sysfs file") this race could not come about, because the routines were being mutually distinctive thanks to the system locking. eliminating that locking from read_descriptors() uncovered it on the race. The ultimate way to take care of the bug is to keep hub_port_init() from modifying udev->descriptor once udev has become initialized and registered. Drivers assume the descriptors stored inside the kernel to be immutable; we should not undermine this expectation. In fact, this change should have been manufactured way back. So now hub_port_init() will consider a further argument, specifying a buffer during which to store the machine descriptor it reads. (If udev has not yet been initialized, the buffer pointer will probably be NULL after which you can hub_port_init() will store the gadget descriptor in udev as before.) This eliminates the information race accountable for the out-of-bounds read. The adjustments to hub_port_init() surface extra intensive than they really are, on account of indentation adjustments ensuing from an attempt to prevent producing to other elements of the usb_device construction immediately after it's been initialized. Similar changes ought to be made to your code that reads the BOS descriptor, but which might be taken care of in a independent patch afterwards. This patch is enough to repair the bug uncovered by syzbot.
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It works by using "page_mapcount(page)" to make a decision if a COW website page really should be NUMA-shielded or not, and which makes Definitely no feeling. The number of mappings a site has is irrelevant: not merely does GUP get yourself a reference to some website page as in Oded's case, but another mappings migth be paged out and the one reference to them can be in the page count. due to the fact we should always by no means seek to NUMA-stability a page that we won't shift anyway on account of other references, just resolve the code to use 'page_count()'. Oded confirms that that fixes his challenge. Now, this does indicate that anything in NUMA balancing finally ends up transforming webpage protections (besides the plain amongst making the web site inaccessible to have the NUMA faulting data). usually the COW simplification wouldn't make any difference - since accomplishing the GUP to the web site would make certain It is writable. the reason for that permission alter will be great to figure out way too, since it Obviously results in spurious COW gatherings - but repairing the nonsensical examination that just happened to operate prior to is obviously the CorrectThing(tm) to perform regardless.
inside the Linux kernel, the next vulnerability has been solved: drm/amdkfd: Never allow mapping the MMIO HDP site with significant internet pages we do not get the correct offset in that case. The GPU has an unused 4K location in the register BAR House into which you'll be able to remap registers.
while in the Linux kernel, the subsequent vulnerability has become resolved: mm: Really don't try to NUMA-migrate COW web pages that produce other makes use of Oded Gabbay reports that enabling NUMA balancing leads to corruption with his Gaudi accelerator examination load: "All the small print are inside the bug, but The underside line is someway, this patch results in corruption in the event the numa balancing attribute is enabled AND we do not use process affinity AND we use GUP to pin internet pages so our accelerator can DMA to/from program memory. both disabling numa balancing, applying process affinity to bind to particular numa-node or reverting this patch brings about the bug to vanish" and Oded bisected the issue to commit 09854ba94c6a ("mm: do_wp_page() simplification"). Now, the NUMA balancing shouldn't actually be switching the writability of a webpage, and as such shouldn't make any difference for COW. nevertheless it seems it does. Suspicious. nevertheless, despite that, the affliction for enabling NUMA faults in change_pte_range() is nonsensical.
from the Linux kernel, the next vulnerability continues to be fixed: drm/vrr: established VRR able prop only whether it is attached to connector VRR able property isn't hooked up by default into the connector it is actually connected provided that VRR is supported.
This might likely supply insights in to the underlying top secret crucial substance. The effects of this vulnerability is taken into account low since exploiting the attacker is needed to possess usage of significant precision timing measurements, in addition to repeated use of the base64 encoding or decoding processes. On top of that, the estimated leakage quantity is bounded and minimal according to the referenced paper. This is patched in commit 734b6c6948d4b2bdee3dd8b4efa591d93a61d272 that has been included in launch Variation 0.7.0. consumers are suggested to up grade. There are no recognized workarounds for this vulnerability.
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- A packet SKB is often manufactured whose tail is much further than its conclusion, triggering out-of-bounds heap facts to be deemed Component of the SKB's info. I have examined that This may be employed by a destructive USB system to deliver a bogus ICMPv6 Echo Request and receive an ICMPv6 Echo Reply in reaction that contains random kernel heap knowledge. It can be possibly also achievable to acquire OOB writes from this on just a little-endian process by some means - possibly by triggering skb_cow() via IP possibilities processing -, but I haven't analyzed that.
So the exact same treatment method has to be placed on all DSA switch motorists, that is: both use devres for each the mdiobus allocation and registration, or Will not use devres in any respect. The bcm_sf2 driver has the code composition in place for orderly mdiobus elimination, so just change devm_mdiobus_alloc() with the non-devres variant, and add guide no cost where important, making sure that we do not Allow devres cost-free a even now-registered bus.
An improper input validation permits an unauthenticated attacker to obtain remote command execution over the afflicted PAM program by sending a specially crafted HTTP ask for.