CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-41074 – cachefiles: Set object to close if ondemand_id < 0 in copen
https://notcve.org/view.php?id=CVE-2024-41074
In the Linux kernel, the following vulnerability has been resolved: cachefiles: Set object to close if ondemand_id < 0 in copen If copen is maliciously called in the user mode, it may delete the request corresponding to the random id. And the request may have not been read yet. Note that when the object is set to reopen, the open request will be done with the still reopen state in above case. As a result, the request corresponding to this object is always skipped in select_req function, so the read request is never completed and blocks other process. Fix this issue by simply set object to close if its id < 0 in copen. • https://git.kernel.org/stable/c/703bea37d13e4ccdafd17ae7c4cb583752ba7663 https://git.kernel.org/stable/c/c32ee78fbc670e6f90989a45d340748e34cad333 https://git.kernel.org/stable/c/0845c553db11c84ff53fccd59da11b6d6ece4a60 https://git.kernel.org/stable/c/4f8703fb3482f92edcfd31661857b16fec89c2c0 •
CVSS: 5.2EPSS: 0%CPEs: 5EXPL: 0CVE-2024-41073 – nvme: avoid double free special payload
https://notcve.org/view.php?id=CVE-2024-41073
In the Linux kernel, the following vulnerability has been resolved: nvme: avoid double free special payload If a discard request needs to be retried, and that retry may fail before a new special payload is added, a double free will result. Clear the RQF_SPECIAL_LOAD when the request is cleaned. A flaw was found in the Linux kernel, where the following issue has been resolved: nvme: avoid double free special payload. If a discard request needs to be retried, and that retry may fail before a new special payload is added, a double free occurs. Clear the RQF_SPECIAL_LOAD when the request is cleaned. • https://git.kernel.org/stable/c/c5942a14f795de957ae9d66027aac8ff4fe70057 https://git.kernel.org/stable/c/f3ab45aacd25d957547fb6d115c1574c20964b3b https://git.kernel.org/stable/c/ae84383c96d6662c24697ab6b44aae855ab670aa https://git.kernel.org/stable/c/1b9fd1265fac85916f90b4648de02adccdb7220b https://git.kernel.org/stable/c/e5d574ab37f5f2e7937405613d9b1a724811e5ad https://access.redhat.com/security/cve/CVE-2024-41073 https://bugzilla.redhat.com/show_bug.cgi?id=2301637 • CWE-415: Double Free •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-41072 – wifi: cfg80211: wext: add extra SIOCSIWSCAN data check
https://notcve.org/view.php?id=CVE-2024-41072
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: wext: add extra SIOCSIWSCAN data check In 'cfg80211_wext_siwscan()', add extra check whether number of channels passed via 'ioctl(sock, SIOCSIWSCAN, ...)' doesn't exceed IW_MAX_FREQUENCIES and reject invalid request with -EINVAL otherwise. • https://git.kernel.org/stable/c/b02ba9a0b55b762bd04743a22f3d9f9645005e79 https://git.kernel.org/stable/c/de5fcf757e33596eed32de170ce5a93fa44dd2ac https://git.kernel.org/stable/c/6295bad58f988eaafcf0e6f8b198a580398acb3b https://git.kernel.org/stable/c/a43cc0558530b6c065976b6b9246f512f8d3593b https://git.kernel.org/stable/c/001120ff0c9e3557dee9b5ee0d358e0fc189996f https://git.kernel.org/stable/c/fe9644efd86704afe50e56b64b609de340ab7c95 https://git.kernel.org/stable/c/35cee10ccaee5bd451a480521bbc25dc9f07fa5b https://git.kernel.org/stable/c/6ef09cdc5ba0f93826c09d810c141a8d1 •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2024-41071 – wifi: mac80211: Avoid address calculations via out of bounds array indexing
https://notcve.org/view.php?id=CVE-2024-41071
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Avoid address calculations via out of bounds array indexing req->n_channels must be set before req->channels[] can be used. This patch fixes one of the issues encountered in [1]. [ 83.964255] UBSAN: array-index-out-of-bounds in net/mac80211/scan.c:364:4 [ 83.964258] index 0 is out of range for type 'struct ieee80211_channel *[]' [...] [ 83.964264] Call Trace: [ 83.964267] <TASK> [ 83.964269] dump_stack_lvl+0x3f/0xc0 [ 83.964274] __ubsan_handle_out_of_bounds+0xec/0x110 [ 83.964278] ieee80211_prep_hw_scan+0x2db/0x4b0 [ 83.964281] __ieee80211_start_scan+0x601/0x990 [ 83.964291] nl80211_trigger_scan+0x874/0x980 [ 83.964295] genl_family_rcv_msg_doit+0xe8/0x160 [ 83.964298] genl_rcv_msg+0x240/0x270 [...] [1] https://bugzilla.kernel.org/show_bug.cgi?id=218810 An out-of-bounds buffer overflow has been found in the Linux kernel’s mac80211 subsystem when scanning for SSIDs. Address calculation using out-of-bounds array indexing could result in an attacker crafting an exploit, resulting in the complete compromise of a system. • https://git.kernel.org/stable/c/a2bb0c5d0086be5ab5054465dfaa381a1144905c https://git.kernel.org/stable/c/26b177ecdd311f20de4c379f0630858a675dfc0c https://git.kernel.org/stable/c/4f43a614b1b84f0d1e3c48cc541c3bfdf414a6d0 https://git.kernel.org/stable/c/2663d0462eb32ae7c9b035300ab6b1523886c718 https://access.redhat.com/security/cve/CVE-2024-41071 https://bugzilla.redhat.com/show_bug.cgi?id=2300448 • CWE-787: Out-of-bounds Write •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-41070 – KVM: PPC: Book3S HV: Prevent UAF in kvm_spapr_tce_attach_iommu_group()
https://notcve.org/view.php?id=CVE-2024-41070
In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: Prevent UAF in kvm_spapr_tce_attach_iommu_group() Al reported a possible use-after-free (UAF) in kvm_spapr_tce_attach_iommu_group(). It looks up `stt` from tablefd, but then continues to use it after doing fdput() on the returned fd. After the fdput() the tablefd is free to be closed by another thread. The close calls kvm_spapr_tce_release() and then release_spapr_tce_table() (via call_rcu()) which frees `stt`. Although there are calls to rcu_read_lock() in kvm_spapr_tce_attach_iommu_group() they are not sufficient to prevent the UAF, because `stt` is used outside the locked regions. With an artifcial delay after the fdput() and a userspace program which triggers the race, KASAN detects the UAF: BUG: KASAN: slab-use-after-free in kvm_spapr_tce_attach_iommu_group+0x298/0x720 [kvm] Read of size 4 at addr c000200027552c30 by task kvm-vfio/2505 CPU: 54 PID: 2505 Comm: kvm-vfio Not tainted 6.10.0-rc3-next-20240612-dirty #1 Hardware name: 8335-GTH POWER9 0x4e1202 opal:skiboot-v6.5.3-35-g1851b2a06 PowerNV Call Trace: dump_stack_lvl+0xb4/0x108 (unreliable) print_report+0x2b4/0x6ec kasan_report+0x118/0x2b0 __asan_load4+0xb8/0xd0 kvm_spapr_tce_attach_iommu_group+0x298/0x720 [kvm] kvm_vfio_set_attr+0x524/0xac0 [kvm] kvm_device_ioctl+0x144/0x240 [kvm] sys_ioctl+0x62c/0x1810 system_call_exception+0x190/0x440 system_call_vectored_common+0x15c/0x2ec ... Freed by task 0: ... kfree+0xec/0x3e0 release_spapr_tce_table+0xd4/0x11c [kvm] rcu_core+0x568/0x16a0 handle_softirqs+0x23c/0x920 do_softirq_own_stack+0x6c/0x90 do_softirq_own_stack+0x58/0x90 __irq_exit_rcu+0x218/0x2d0 irq_exit+0x30/0x80 arch_local_irq_restore+0x128/0x230 arch_local_irq_enable+0x1c/0x30 cpuidle_enter_state+0x134/0x5cc cpuidle_enter+0x6c/0xb0 call_cpuidle+0x7c/0x100 do_idle+0x394/0x410 cpu_startup_entry+0x60/0x70 start_secondary+0x3fc/0x410 start_secondary_prolog+0x10/0x14 Fix it by delaying the fdput() until `stt` is no longer in use, which is effectively the entire function. To keep the patch minimal add a call to fdput() at each of the existing return paths. Future work can convert the function to goto or __cleanup style cleanup. With the fix in place the test case no longer triggers the UAF. • https://git.kernel.org/stable/c/be847bb20c809de8ac124431b556f244400b0491 https://git.kernel.org/stable/c/4cdf6926f443c84f680213c7aafbe6f91a5fcbc0 https://git.kernel.org/stable/c/b26c8c85463ef27a522d24fcd05651f0bb039e47 https://git.kernel.org/stable/c/5f856023971f97fff74cfaf21b48ec320147b50a https://git.kernel.org/stable/c/82c7a4cf14aa866f8f7f09e662b02eddc49ee0bf https://git.kernel.org/stable/c/9975f93c760a32453d7639cf6fcf3f73b4e71ffe https://git.kernel.org/stable/c/a986fa57fd81a1430e00b3c6cf8a325d6f894a63 •