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CVSS: 7.2EPSS: 0%CPEs: 9EXPL: 0

21 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential null-ptr-deref in nilfs_btree_insert() Patch series "nilfs2: fix potential issues with empty b-tree nodes". This series addresses three potential issues with empty b-tree nodes that can occur with corrupted filesystem images, including one recently discovered by syzbot. This patch (of 3): If a b-tree is broken on the device, and the b-tree height is greater than 2 (the level of the root node is greater than 1) even if ... • https://git.kernel.org/stable/c/17c76b0104e4a6513983777e1a17e0297a12b0c4 •

CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0

21 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: tcp: check skb is non-NULL in tcp_rto_delta_us() We have some machines running stock Ubuntu 20.04.6 which is their 5.4.0-174-generic kernel that are running ceph and recently hit a null ptr dereference in tcp_rearm_rto(). Initially hitting it from the TLP path, but then later we also saw it getting hit from the RACK case as well. Here are examples of the oops messages we saw in each of those cases: Jul 26 15:05:02 rx [11061395.780353] BUG: ... • https://git.kernel.org/stable/c/e1a10ef7fa876f8510aaec36ea5c0cf34baba410 •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

21 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Skip Recompute DSC Params if no Stream on Link [why] Encounter NULL pointer dereference uner mst + dsc setup. BUG: kernel NULL pointer dereference, address: 0000000000000008 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 4 PID: 917 Comm: sway Not tainted 6.3.9-arch1-1 #1 124dc55df4f5272ccb409f39ef4872fc2b3376a2 Hardware name: LENOVO 20NKS01Y00/20NKS01Y00, BIOS R12ET61W(1.31 ) 07/28/2022 RIP: 0010:drm_dp_atomic_find_time... • https://git.kernel.org/stable/c/7c887efda1201110211fed8921a92a713e0b6bcd •

CVSS: -EPSS: 0%CPEs: 9EXPL: 0

21 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: vfs: fix race between evice_inodes() and find_inode()&iput() Hi, all Recently I noticed a bug[1] in btrfs, after digged it into and I believe it'a race in vfs. Let's assume there's a inode (ie ino 261) with i_count 1 is called by iput(), and there's a concurrent thread calling generic_shutdown_super(). cpu0: cpu1: iput() // i_count is 1 ->spin_lock(inode) ->dec i_count to 0 ->iput_final() generic_shutdown_super() ->__inode_add_lru() ->evict... • https://git.kernel.org/stable/c/63997e98a3be68d7cec806d22bf9b02b2e1daabb •

CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0

15 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: mm: avoid leaving partial pfn mappings around in error case As Jann points out, PFN mappings are special, because unlike normal memory mappings, there is no lifetime information associated with the mapping - it is just a raw mapping of PFNs with no reference counting of a 'struct page'. That's all very much intentional, but it does mean that it's easy to mess up the cleanup in case of errors. Yes, a failed mmap() will always eventually clea... • https://git.kernel.org/stable/c/3213fdcab961026203dd587a4533600c70b3336b •

CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0

09 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: pause TCM when the firmware is stopped Not doing so will make us send a host command to the transport while the firmware is not alive, which will trigger a WARNING. bad state = 0 WARNING: CPU: 2 PID: 17434 at drivers/net/wireless/intel/iwlwifi/iwl-trans.c:115 iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi] RIP: 0010:iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi] Call Trace: iwl_mvm_send_cmd+0x40/0xc0 [iwlmvm] iwl_mvm_config_sc... • https://git.kernel.org/stable/c/a15df5f37fa3a8b7a8ec7a339d1e897bc524e28f •

CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 0

09 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't wait for tx queues if firmware is dead There is a WARNING in iwl_trans_wait_tx_queues_empty() (that was recently converted from just a message), that can be hit if we wait for TX queues to become empty after firmware died. Clearly, we can't expect anything from the firmware after it's declared dead. Don't call iwl_trans_wait_tx_queues_empty() in this case. While it could be a good idea to stop the flow earlier, the... • https://git.kernel.org/stable/c/ad2fcc2daa203a6ad491f00e9ae3b7867e8fe0f3 •

CVSS: -EPSS: 0%CPEs: 8EXPL: 0

09 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: ocfs2: add bounds checking to ocfs2_xattr_find_entry() Add a paranoia check to make sure it doesn't stray beyond valid memory region containing ocfs2 xattr entries when scanning for a match. It will prevent out-of-bound access in case of crafted images. In the Linux kernel, the following vulnerability has been resolved: ocfs2: add bounds checking to ocfs2_xattr_find_entry() Add a paranoia check to make sure it doesn't stray beyond valid mem... • https://git.kernel.org/stable/c/b49a786beb11ff740cb9e0c20b999c2a0e1729c2 •

CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0

09 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix state management in error path of log writing function After commit a694291a6211 ("nilfs2: separate wait function from nilfs_segctor_write") was applied, the log writing function nilfs_segctor_do_construct() was able to issue I/O requests continuously even if user data blocks were split into multiple logs across segments, but two potential flaws were introduced in its error handling. First, if nilfs_segctor_begin_construction() ... • https://git.kernel.org/stable/c/a694291a6211537189c6080f77f63cdabfc9b63e •

CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0

09 Oct 2024 — In the Linux kernel, the following vulnerability has been resolved: lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc() If we need to increase the tree depth, allocate a new node, and then race with another thread that increased the tree depth before us, we'll still have a preallocated node that might be used later. If we then use that node for a new non-root node, it'll still have a pointer to the old root instead of being zeroed - fix this by zeroing it in the cmpxchg failure path. In the Li... • https://git.kernel.org/stable/c/0f27f4f445390cb7f73d4209cb2bf32834dc53da • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •