CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-43841 – wifi: virt_wifi: avoid reporting connection success with wrong SSID
https://notcve.org/view.php?id=CVE-2024-43841
In the Linux kernel, the following vulnerability has been resolved: wifi: virt_wifi: avoid reporting connection success with wrong SSID When user issues a connection with a different SSID than the one virt_wifi has advertised, the __cfg80211_connect_result() will trigger the warning: WARN_ON(bss_not_found). The issue is because the connection code in virt_wifi does not check the SSID from user space (it only checks the BSSID), and virt_wifi will call cfg80211_connect_result() with WLAN_STATUS_SUCCESS even if the SSID is different from the one virt_wifi has advertised. Eventually cfg80211 won't be able to find the cfg80211_bss and generate the warning. Fixed it by checking the SSID (from user space) in the connection code. • https://git.kernel.org/stable/c/c7cdba31ed8b87526db978976392802d3f93110c https://git.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4d https://git.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414 https://git.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942 https://git.kernel.org/stable/c/d3cc85a10abc8eae48988336cdd3689ab92581b3 https://git.kernel.org/stable/c/36e92b5edc8e0daa18e9325674313802ce3fbc29 https://git.kernel.org/stable/c/416d3c1538df005195721a200b0371d39636e05d https://git.kernel.org/stable/c/b5d14b0c6716fad7f0c94ac6e1d6f60a4 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-43839 – bna: adjust 'name' buf size of bna_tcb and bna_ccb structures
https://notcve.org/view.php?id=CVE-2024-43839
In the Linux kernel, the following vulnerability has been resolved: bna: adjust 'name' buf size of bna_tcb and bna_ccb structures To have enough space to write all possible sprintf() args. Currently 'name' size is 16, but the first '%s' specifier may already need at least 16 characters, since 'bnad->netdev->name' is used there. For '%d' specifiers, assume that they require: * 1 char for 'tx_id + tx_info->tcb[i]->id' sum, BNAD_MAX_TXQ_PER_TX is 8 * 2 chars for 'rx_id + rx_info->rx_ctrl[i].ccb->id', BNAD_MAX_RXP_PER_RX is 16 And replace sprintf with snprintf. Detected using the static analysis tool - Svace. • https://git.kernel.org/stable/c/8b230ed8ec96c933047dd0625cf95f739e4939a6 https://git.kernel.org/stable/c/f121740f69eda4da2de9a20a6687a13593e72540 https://git.kernel.org/stable/c/c90b1cd7758fd4839909e838ae195d19f8065d76 https://git.kernel.org/stable/c/6ce46045f9b90d952602e2c0b8886cfadf860bf1 https://git.kernel.org/stable/c/6d20c4044ab4d0e6a99aa35853e66f0aed5589e3 https://git.kernel.org/stable/c/ab748dd10d8742561f2980fea08ffb4f0cacfdef https://git.kernel.org/stable/c/b0ff0cd0847b03c0a0abe20cfa900eabcfcb9e43 https://git.kernel.org/stable/c/e0f48f51d55fb187400e9787192eda09f •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-43835 – virtio_net: Fix napi_skb_cache_put warning
https://notcve.org/view.php?id=CVE-2024-43835
In the Linux kernel, the following vulnerability has been resolved: virtio_net: Fix napi_skb_cache_put warning After the commit bdacf3e34945 ("net: Use nested-BH locking for napi_alloc_cache.") was merged, the following warning began to appear: WARNING: CPU: 5 PID: 1 at net/core/skbuff.c:1451 napi_skb_cache_put+0x82/0x4b0 __warn+0x12f/0x340 napi_skb_cache_put+0x82/0x4b0 napi_skb_cache_put+0x82/0x4b0 report_bug+0x165/0x370 handle_bug+0x3d/0x80 exc_invalid_op+0x1a/0x50 asm_exc_invalid_op+0x1a/0x20 __free_old_xmit+0x1c8/0x510 napi_skb_cache_put+0x82/0x4b0 __free_old_xmit+0x1c8/0x510 __free_old_xmit+0x1c8/0x510 __pfx___free_old_xmit+0x10/0x10 The issue arises because virtio is assuming it's running in NAPI context even when it's not, such as in the netpoll case. To resolve this, modify virtnet_poll_tx() to only set NAPI when budget is available. Same for virtnet_poll_cleantx(), which always assumed that it was in a NAPI context. • https://git.kernel.org/stable/c/df133f3f96257ee29696c0ed8bd198ec801dc810 https://git.kernel.org/stable/c/19ac6f29bf64304ef04630c8ab56ecd2059d7aa1 https://git.kernel.org/stable/c/d3af435e8ace119e58d8e21d3d2d6a4e7c4a4baa https://git.kernel.org/stable/c/842a97b5e44f0c8a9fc356fe976e0e13ddcf7783 https://git.kernel.org/stable/c/cc7340f18e45886121c131227985d64ef666012f https://git.kernel.org/stable/c/6b5325f2457521bbece29499970c0117a648c620 https://git.kernel.org/stable/c/f5e9a22d19bb98a7e86034db85eb295e94187caa https://git.kernel.org/stable/c/468a729b78895893d0e580ceea49bed8a •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-43834 – xdp: fix invalid wait context of page_pool_destroy()
https://notcve.org/view.php?id=CVE-2024-43834
In the Linux kernel, the following vulnerability has been resolved: xdp: fix invalid wait context of page_pool_destroy() If the driver uses a page pool, it creates a page pool with page_pool_create(). The reference count of page pool is 1 as default. A page pool will be destroyed only when a reference count reaches 0. page_pool_destroy() is used to destroy page pool, it decreases a reference count. When a page pool is destroyed, ->disconnect() is called, which is mem_allocator_disconnect(). This function internally acquires mutex_lock(). If the driver uses XDP, it registers a memory model with xdp_rxq_info_reg_mem_model(). The xdp_rxq_info_reg_mem_model() internally increases a page pool reference count if a memory model is a page pool. Now the reference count is 2. To destroy a page pool, the driver should call both page_pool_destroy() and xdp_unreg_mem_model(). The xdp_unreg_mem_model() internally calls page_pool_destroy(). Only page_pool_destroy() decreases a reference count. If a driver calls page_pool_destroy() then xdp_unreg_mem_model(), we will face an invalid wait context warning. Because xdp_unreg_mem_model() calls page_pool_destroy() with rcu_read_lock(). The page_pool_destroy() internally acquires mutex_lock(). Splat looks like: ============================= [ BUG: Invalid wait context ] 6.10.0-rc6+ #4 Tainted: G W ----------------------------- ethtool/1806 is trying to lock: ffffffff90387b90 (mem_id_lock){+.+.}-{4:4}, at: mem_allocator_disconnect+0x73/0x150 other info that might help us debug this: context-{5:5} 3 locks held by ethtool/1806: stack backtrace: CPU: 0 PID: 1806 Comm: ethtool Tainted: G W 6.10.0-rc6+ #4 f916f41f172891c800f2fed Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021 Call Trace: <TASK> dump_stack_lvl+0x7e/0xc0 __lock_acquire+0x1681/0x4de0 ? _printk+0x64/0xe0 ? __pfx_mark_lock.part.0+0x10/0x10 ? __pfx___lock_acquire+0x10/0x10 lock_acquire+0x1b3/0x580 ? mem_allocator_disconnect+0x73/0x150 ? • https://git.kernel.org/stable/c/c3f812cea0d7006469d1cf33a4a9f0a12bb4b3a3 https://git.kernel.org/stable/c/bf22306d92ca59c59dc4aa3bab14768948193d56 https://git.kernel.org/stable/c/05f646cb2174d1a4e032b60b99097f5c4b522616 https://git.kernel.org/stable/c/be9d08ff102df3ac4f66e826ea935cf3af63a4bd https://git.kernel.org/stable/c/6c390ef198aa69795427a5cb5fd7cb4bc7e6cd7a https://git.kernel.org/stable/c/3fc1be360b99baeea15cdee3cf94252cd3a72d26 https://git.kernel.org/stable/c/bf0ce5aa5f2525ed1b921ba36de96e458e77f482 https://git.kernel.org/stable/c/12144069209eec7f2090ce9afa15acdcc •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-43832 – s390/uv: Don't call folio_wait_writeback() without a folio reference
https://notcve.org/view.php?id=CVE-2024-43832
In the Linux kernel, the following vulnerability has been resolved: s390/uv: Don't call folio_wait_writeback() without a folio reference folio_wait_writeback() requires that no spinlocks are held and that a folio reference is held, as documented. After we dropped the PTL, the folio could get freed concurrently. So grab a temporary reference. • https://git.kernel.org/stable/c/214d9bbcd3a67230b932f6cea83c078ab34d9e70 https://git.kernel.org/stable/c/1a1eb2f3fc453dcd52726d13e863938561489cb7 https://git.kernel.org/stable/c/8736604ef53359a718c246087cd21dcec232d2fb https://git.kernel.org/stable/c/b21aba72aadd94bdac275deab021fc84d6c72b16 https://git.kernel.org/stable/c/3f29f6537f54d74e64bac0a390fb2e26da25800d •