CentOS Linux 7 主機已安裝的套件會受到 TuxCare CENTOS7：CLSA-2026：1792751247 公告中提及的多個弱點影響。

  - 已解決 Linux 核心中的下列弱點：mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) If an mremap() syscall with old_size=0 ends up in move_page_tables(), it will call invalidate_range_start()/invalidate_range_end() unnecessarily, i.e. with an empty range. This causes a WARN in KVM's mmu_notifier. In the past, empty ranges have been diagnosed to be off-by-one bugs, hence the WARNing. Given the low (so far) number of unique reports, the benefits of detecting more buggy callers seem to outweigh the cost of having to fix cases such as this one, where userspace is doing something silly. In this particular case, an early return from move_page_tables() is enough to fix the issue. (CVE-2022-49077)

  - 已解決 Linux 核心中的下列弱點：virtio_console: eliminate anonymous module_init & module_exit Eliminate anonymous module_init() and module_exit(), which can lead to confusion or ambiguity when reading System.map, crashes/oops/bugs, or an initcall_debug log. Give each of these init and exit functions unique driver-specific names to eliminate the anonymous names. Example 1: (System.map) ffffffff832fc78c t init ffffffff832fc79e t init ffffffff832fc8f8 t init Example 2: (initcall_debug log) calling init+0x0/0x12 @ 1 initcall init+0x0/0x12 returned 0 after 15 usecs calling init+0x0/0x60 @ 1 initcall init+0x0/0x60 returned 0 after 2 usecs calling init+0x0/0x9a @ 1 initcall init+0x0/0x9a returned 0 after 74 usecs (CVE-2022-49100)

  - 已解決 Linux 核心中的下列弱點：mtd: Fix device name leak when register device failed in add_mtd_device() There is a kmemleak when register device failed: unreferenced object 0xffff888101aab550 (size 8): comm insmod, pid 3922, jiffies 4295277753 (age 925.408s) hex dump (first 8 bytes): 6d 74 64 30 00 88 ff ff mtd0.... backtrace: [<00000000bde26724>]
    __kmalloc_node_track_caller+0x4e/0x150 [<000000003c32b416>] kvasprintf+0xb0/0x130 [<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0 [<000000006e781163>] dev_set_name+0xab/0xe0 [<00000000e30d0c78>] add_mtd_device+0x4bb/0x700 [<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0 [<00000000c0d88488>] 0xffffffffa0238457 [<00000000b40d0922>] 0xffffffffa02a008f [<0000000023d17b9d>] do_one_initcall+0x87/0x2a0 [<00000000770f6ca6>] do_init_module+0xdf/0x320 [<000000007b6768fe>] load_module+0x2f98/0x3330 [<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0 [<00000000674c2290>] do_syscall_64+0x35/0x80 [<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 If register device failed, should call put_device() to give up the reference. (CVE-2022-50566)

  - 已解決 Linux 核心中的下列弱點：media: dvb-frontends: fix leak of memory fw (CVE-2022-50664)

  - 已解決 Linux 核心中的下列弱點：acct: fix potential integer overflow in encode_comp_t() The integer overflow is descripted with following codes: > 317 static comp_t encode_comp_t(u64 value) > 318 { > 319 int exp, rnd; ...... > 341 exp <<= MANTSIZE; > 342 exp += value; > 343 return exp; > 344 } Currently comp_t is defined as type of '__u16', but the variable 'exp' is type of 'int', so overflow would happen when variable 'exp' in line 343 is greater than 65535. (CVE-2022-50749)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

CentOS Linux 6 主機安裝的套件會受到 TuxCare CENTOS6：CLSA-2026：1792245431 公告中提及的多個弱點影響。

  - 已解決 Linux 核心中的下列弱點：virtio_console: eliminate anonymous module_init & module_exit Eliminate anonymous module_init() and module_exit(), which can lead to confusion or ambiguity when reading System.map, crashes/oops/bugs, or an initcall_debug log. Give each of these init and exit functions unique driver-specific names to eliminate the anonymous names. Example 1: (System.map) ffffffff832fc78c t init ffffffff832fc79e t init ffffffff832fc8f8 t init Example 2: (initcall_debug log) calling init+0x0/0x12 @ 1 initcall init+0x0/0x12 returned 0 after 15 usecs calling init+0x0/0x60 @ 1 initcall init+0x0/0x60 returned 0 after 2 usecs calling init+0x0/0x9a @ 1 initcall init+0x0/0x9a returned 0 after 74 usecs (CVE-2022-49100)

  - 已解決 Linux 核心中的下列弱點：mtd: Fix device name leak when register device failed in add_mtd_device() There is a kmemleak when register device failed: unreferenced object 0xffff888101aab550 (size 8): comm insmod, pid 3922, jiffies 4295277753 (age 925.408s) hex dump (first 8 bytes): 6d 74 64 30 00 88 ff ff mtd0.... backtrace: [<00000000bde26724>]
    __kmalloc_node_track_caller+0x4e/0x150 [<000000003c32b416>] kvasprintf+0xb0/0x130 [<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0 [<000000006e781163>] dev_set_name+0xab/0xe0 [<00000000e30d0c78>] add_mtd_device+0x4bb/0x700 [<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0 [<00000000c0d88488>] 0xffffffffa0238457 [<00000000b40d0922>] 0xffffffffa02a008f [<0000000023d17b9d>] do_one_initcall+0x87/0x2a0 [<00000000770f6ca6>] do_init_module+0xdf/0x320 [<000000007b6768fe>] load_module+0x2f98/0x3330 [<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0 [<00000000674c2290>] do_syscall_64+0x35/0x80 [<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 If register device failed, should call put_device() to give up the reference. (CVE-2022-50566)

  - 已解決 Linux 核心中的下列弱點：media: dvb-frontends: fix leak of memory fw (CVE-2022-50664)

  - 已解決 Linux 核心中的下列弱點：acct: fix potential integer overflow in encode_comp_t() The integer overflow is descripted with following codes: > 317 static comp_t encode_comp_t(u64 value) > 318 { > 319 int exp, rnd; ...... > 341 exp <<= MANTSIZE; > 342 exp += value; > 343 return exp; > 344 } Currently comp_t is defined as type of '__u16', but the variable 'exp' is type of 'int', so overflow would happen when variable 'exp' in line 343 is greater than 65535. (CVE-2022-50749)

  - 已解決 Linux 核心中的下列弱點：ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount some crafted filesystems with extremely large group counts. (CVE-2022-50815)

請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且廠商未提供可用的修補程式。

  - SELinux：拒絕超過類別權限計數的權限值 perm_read（） 會以 SEL_VEC_MAX 限制權限值，但絕不會以擁有類別或通用的 nprim 為界，這是從原則映像中逐字擷取的。然後，security_get_permissions（） 會將 perms[value - 1] 寫入 nprim 大小的 kcalloc（） 陣列，因此宣告的權限少於其最大權限值的類別會驅動越界堆積寫入。頂層符號表會以這種方式進行驗證;巢狀的每個類別權限資料表不是。拒絕值超過 nprim 的權限，該權限已在 perm_read（） 執行時設定。格式良好的原則不受影響。[PM：調整行長註釋]（CVE-2026-80755）

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

ID	名稱	產品	系列	已發布	已更新	嚴重性
364137	Oracle Linux 10 / 9：Unbreakable Enterprise 核心 (ELSA-2026-500374)	Nessus	Oracle Linux Local Security Checks	2026/10/8	2026/10/8	high
351155	Debian dsa-6528 ： ata-modules-6.12.111+deb13-armmp-di - 安全性更新	Nessus	Debian Local Security Checks	2026/9/29	2026/9/29	high
362907	Debian dla-4817 ： ata-modules-6.12.107+deb12-armmp-di - 安全性更新	Nessus	Debian Local Security Checks	2026/10/4	2026/10/4	high
365283	Amazon Linux 2023：bpftool6.18、kernel6.18、kernel6.18-devel (ALAS2023-2026-3187)	Nessus	Amazon Linux Local Security Checks	2026/10/12	2026/10/26	medium
372116	CentOS Linux 7 [TuxCare] 安全性更新：bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / etc 多個弱點（CENTOS7：CLSA-2026：1792751247）	Nessus	CentOS Local Security Checks	2026/10/26	2026/11/2	high
369516	CentOS Linux 6 [TuxCare] 安全性更新：核心 / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc 多個弱點（CENTOS6：CLSA-2026：1792245431）	Nessus	CentOS Local Security Checks	2026/10/21	2026/11/2	high
342730	Linux Distros 未修補弱點：CVE-2026-80755	Nessus	Misc.	2026/9/4	2026/11/4	high
365279	Amazon Linux 2023：bpftool6.12、kernel6.12、kernel6.12-devel （ALAS2023-2026-3196）	Nessus	Amazon Linux Local Security Checks	2026/10/12	2026/10/22	medium

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