The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - kcsan: Avoid READ_ONCE() in read_instrumented_memory() Haibo Li reported: | Unable to handle kernel paging     request at virtual address | ffffff802a0d8d7171 | Mem abort info:o: | ESR = 0x9600002121 | EC = 0x25: DABT     (current EL), IL = 32 bitsts | SET = 0, FnV = 0 0 | EA = 0, S1PTW = 0 0 | FSC = 0x21: alignment fault |     Data abort info:o: | ISV = 0, ISS = 0x0000002121 | CM = 0, WnR = 0 0 | swapper pgtable: 4k pages, 39-bit     VAs, pgdp=000000002835200000 | [ffffff802a0d8d71] pgd=180000005fbf9003, p4d=180000005fbf9003, |     pud=180000005fbf9003, pmd=180000005fbe8003, pte=006800002a0d8707 | Internal error: Oops: 96000021 [#1]     PREEMPT SMP | Modules linked in: | CPU: 2 PID: 45 Comm: kworker/u8:2 Not tainted |     5.15.78-android13-8-g63561175bbda-dirty #1 | ... | pc : kcsan_setup_watchpoint+0x26c/0x6bc | lr :
    kcsan_setup_watchpoint+0x88/0x6bc | sp : ffffffc00ab4b7f0 | x29: ffffffc00ab4b800 x28: ffffff80294fe588     x27: 0000000000000001 | x26: 0000000000000019 x25: 0000000000000001 x24: ffffff80294fdb80 | x23:
    0000000000000000 x22: ffffffc00a70fb68 x21: ffffff802a0d8d71 | x20: 0000000000000002 x19: 0000000000000000     x18: ffffffc00a9bd060 | x17: 0000000000000001 x16: 0000000000000000 x15: ffffffc00a59f000 | x14:
    0000000000000001 x13: 0000000000000000 x12: ffffffc00a70faa0 | x11: 00000000aaaaaaab x10: 0000000000000054     x9 : ffffffc00839adf8 | x8 : ffffffc009b4cf00 x7 : 0000000000000000 x6 : 0000000000000007 | x5 :
    0000000000000000 x4 : 0000000000000000 x3 : ffffffc00a70fb70 | x2 : 0005ff802a0d8d71 x1 : 0000000000000000     x0 : 0000000000000000 | Call trace: | kcsan_setup_watchpoint+0x26c/0x6bc | __tsan_read2+0x1f0/0x234 |     inflate_fast+0x498/0x750 | zlib_inflate+0x1304/0x2384 | __gunzip+0x3a0/0x45c | gunzip+0x20/0x30 |     unpack_to_rootfs+0x2a8/0x3fc | do_populate_rootfs+0xe8/0x11c | async_run_entry_fn+0x58/0x1bc |     process_one_work+0x3ec/0x738 | worker_thread+0x4c4/0x838 | kthread+0x20c/0x258 | ret_from_fork+0x10/0x20 |     Code: b8bfc2a8 2a0803f7 14000007 d503249f (78bfc2a8) ) | ---[ end trace 613a943cb0a572b6 ]----- The reason     for this is that on certain arm64 configuration since e35123d83ee3 (arm64: lto: Strengthen READ_ONCE() to     acquire when CONFIG_LTO=y), READ_ONCE() may be promoted to a full atomic acquire instruction which cannot     be used on unaligned addresses. Fix it by avoiding READ_ONCE() in read_instrumented_memory(), and simply     forcing the compiler to do the required access by casting to the appropriate volatile type. In terms of     generated code this currently only affects architectures that do not use the default READ_ONCE()     implementation. The only downside is that we are not guaranteed atomicity of the access itself, although     on most architectures a plain load up to machine word size should still be atomic (a fact the default     READ_ONCE() still relies on itself). (CVE-2023-53742)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

Analytics

Linux Distros Unpatched Vulnerability : CVE-2023-53742

high Nessus Plugin ID 277645

Version 1.3

Version 1.2

Version 1.1

Version 1.3 Dec 11, 2025, 12:59 PM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512111259
Version 1.2 Dec 10, 2025, 9:29 AM Detection (updated detection logic) Plugin metadata Plugin Feed: 202512100929
Version 1.1 Dec 8, 2025, 6:20 PM New Plugin Feed: 202512081820